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"
36 static void ixgbe_i2c_start(struct ixgbe_hw
*hw
);
37 static void ixgbe_i2c_stop(struct ixgbe_hw
*hw
);
38 static s32
ixgbe_clock_in_i2c_byte(struct ixgbe_hw
*hw
, u8
*data
);
39 static s32
ixgbe_clock_out_i2c_byte(struct ixgbe_hw
*hw
, u8 data
);
40 static s32
ixgbe_get_i2c_ack(struct ixgbe_hw
*hw
);
41 static s32
ixgbe_clock_in_i2c_bit(struct ixgbe_hw
*hw
, bool *data
);
42 static s32
ixgbe_clock_out_i2c_bit(struct ixgbe_hw
*hw
, bool data
);
43 static void ixgbe_raise_i2c_clk(struct ixgbe_hw
*hw
, u32
*i2cctl
);
44 static void ixgbe_lower_i2c_clk(struct ixgbe_hw
*hw
, u32
*i2cctl
);
45 static s32
ixgbe_set_i2c_data(struct ixgbe_hw
*hw
, u32
*i2cctl
, bool data
);
46 static bool ixgbe_get_i2c_data(struct ixgbe_hw
*hw
, u32
*i2cctl
);
47 static void ixgbe_i2c_bus_clear(struct ixgbe_hw
*hw
);
48 static enum ixgbe_phy_type
ixgbe_get_phy_type_from_id(u32 phy_id
);
49 static s32
ixgbe_get_phy_id(struct ixgbe_hw
*hw
);
50 static s32
ixgbe_identify_qsfp_module_generic(struct ixgbe_hw
*hw
);
53 * ixgbe_out_i2c_byte_ack - Send I2C byte with ack
54 * @hw: pointer to the hardware structure
57 * Returns an error code on error.
59 static s32
ixgbe_out_i2c_byte_ack(struct ixgbe_hw
*hw
, u8 byte
)
63 status
= ixgbe_clock_out_i2c_byte(hw
, byte
);
66 return ixgbe_get_i2c_ack(hw
);
70 * ixgbe_in_i2c_byte_ack - Receive an I2C byte and send ack
71 * @hw: pointer to the hardware structure
72 * @byte: pointer to a u8 to receive the byte
74 * Returns an error code on error.
76 static s32
ixgbe_in_i2c_byte_ack(struct ixgbe_hw
*hw
, u8
*byte
)
80 status
= ixgbe_clock_in_i2c_byte(hw
, byte
);
84 return ixgbe_clock_out_i2c_bit(hw
, false);
88 * ixgbe_ones_comp_byte_add - Perform one's complement addition
92 * Returns one's complement 8-bit sum.
94 static u8
ixgbe_ones_comp_byte_add(u8 add1
, u8 add2
)
96 u16 sum
= add1
+ add2
;
98 sum
= (sum
& 0xFF) + (sum
>> 8);
103 * ixgbe_read_i2c_combined_generic_int - Perform I2C read combined operation
104 * @hw: pointer to the hardware structure
105 * @addr: I2C bus address to read from
106 * @reg: I2C device register to read from
107 * @val: pointer to location to receive read value
108 * @lock: true if to take and release semaphore
110 * Returns an error code on error.
112 static s32
ixgbe_read_i2c_combined_generic_int(struct ixgbe_hw
*hw
, u8 addr
,
113 u16 reg
, u16
*val
, bool lock
)
115 u32 swfw_mask
= hw
->phy
.phy_semaphore_mask
;
124 reg_high
= ((reg
>> 7) & 0xFE) | 1; /* Indicate read combined */
125 csum
= ixgbe_ones_comp_byte_add(reg_high
, reg
& 0xFF);
128 if (lock
&& hw
->mac
.ops
.acquire_swfw_sync(hw
, swfw_mask
))
129 return IXGBE_ERR_SWFW_SYNC
;
131 /* Device Address and write indication */
132 if (ixgbe_out_i2c_byte_ack(hw
, addr
))
134 /* Write bits 14:8 */
135 if (ixgbe_out_i2c_byte_ack(hw
, reg_high
))
138 if (ixgbe_out_i2c_byte_ack(hw
, reg
& 0xFF))
141 if (ixgbe_out_i2c_byte_ack(hw
, csum
))
143 /* Re-start condition */
145 /* Device Address and read indication */
146 if (ixgbe_out_i2c_byte_ack(hw
, addr
| 1))
149 if (ixgbe_in_i2c_byte_ack(hw
, &high_bits
))
152 if (ixgbe_in_i2c_byte_ack(hw
, &low_bits
))
155 if (ixgbe_clock_in_i2c_byte(hw
, &csum_byte
))
158 if (ixgbe_clock_out_i2c_bit(hw
, false))
162 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
163 *val
= (high_bits
<< 8) | low_bits
;
167 ixgbe_i2c_bus_clear(hw
);
169 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
171 if (retry
< max_retry
)
172 hw_dbg(hw
, "I2C byte read combined error - Retry.\n");
174 hw_dbg(hw
, "I2C byte read combined error.\n");
175 } while (retry
< max_retry
);
177 return IXGBE_ERR_I2C
;
181 * ixgbe_read_i2c_combined_generic - Perform I2C read combined operation
182 * @hw: pointer to the hardware structure
183 * @addr: I2C bus address to read from
184 * @reg: I2C device register to read from
185 * @val: pointer to location to receive read value
187 * Returns an error code on error.
189 s32
ixgbe_read_i2c_combined_generic(struct ixgbe_hw
*hw
, u8 addr
,
192 return ixgbe_read_i2c_combined_generic_int(hw
, addr
, reg
, val
, true);
196 * ixgbe_read_i2c_combined_generic_unlocked - Unlocked I2C read combined
197 * @hw: pointer to the hardware structure
198 * @addr: I2C bus address to read from
199 * @reg: I2C device register to read from
200 * @val: pointer to location to receive read value
202 * Returns an error code on error.
204 s32
ixgbe_read_i2c_combined_generic_unlocked(struct ixgbe_hw
*hw
, u8 addr
,
207 return ixgbe_read_i2c_combined_generic_int(hw
, addr
, reg
, val
, false);
211 * ixgbe_write_i2c_combined_generic_int - Perform I2C write combined operation
212 * @hw: pointer to the hardware structure
213 * @addr: I2C bus address to write to
214 * @reg: I2C device register to write to
215 * @val: value to write
216 * @lock: true if to take and release semaphore
218 * Returns an error code on error.
220 static s32
ixgbe_write_i2c_combined_generic_int(struct ixgbe_hw
*hw
, u8 addr
,
221 u16 reg
, u16 val
, bool lock
)
223 u32 swfw_mask
= hw
->phy
.phy_semaphore_mask
;
229 reg_high
= (reg
>> 7) & 0xFE; /* Indicate write combined */
230 csum
= ixgbe_ones_comp_byte_add(reg_high
, reg
& 0xFF);
231 csum
= ixgbe_ones_comp_byte_add(csum
, val
>> 8);
232 csum
= ixgbe_ones_comp_byte_add(csum
, val
& 0xFF);
235 if (lock
&& hw
->mac
.ops
.acquire_swfw_sync(hw
, swfw_mask
))
236 return IXGBE_ERR_SWFW_SYNC
;
238 /* Device Address and write indication */
239 if (ixgbe_out_i2c_byte_ack(hw
, addr
))
241 /* Write bits 14:8 */
242 if (ixgbe_out_i2c_byte_ack(hw
, reg_high
))
245 if (ixgbe_out_i2c_byte_ack(hw
, reg
& 0xFF))
247 /* Write data 15:8 */
248 if (ixgbe_out_i2c_byte_ack(hw
, val
>> 8))
251 if (ixgbe_out_i2c_byte_ack(hw
, val
& 0xFF))
254 if (ixgbe_out_i2c_byte_ack(hw
, csum
))
258 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
262 ixgbe_i2c_bus_clear(hw
);
264 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
266 if (retry
< max_retry
)
267 hw_dbg(hw
, "I2C byte write combined error - Retry.\n");
269 hw_dbg(hw
, "I2C byte write combined error.\n");
270 } while (retry
< max_retry
);
272 return IXGBE_ERR_I2C
;
276 * ixgbe_write_i2c_combined_generic - Perform I2C write combined operation
277 * @hw: pointer to the hardware structure
278 * @addr: I2C bus address to write to
279 * @reg: I2C device register to write to
280 * @val: value to write
282 * Returns an error code on error.
284 s32
ixgbe_write_i2c_combined_generic(struct ixgbe_hw
*hw
,
285 u8 addr
, u16 reg
, u16 val
)
287 return ixgbe_write_i2c_combined_generic_int(hw
, addr
, reg
, val
, true);
291 * ixgbe_write_i2c_combined_generic_unlocked - Unlocked I2C write combined
292 * @hw: pointer to the hardware structure
293 * @addr: I2C bus address to write to
294 * @reg: I2C device register to write to
295 * @val: value to write
297 * Returns an error code on error.
299 s32
ixgbe_write_i2c_combined_generic_unlocked(struct ixgbe_hw
*hw
,
300 u8 addr
, u16 reg
, u16 val
)
302 return ixgbe_write_i2c_combined_generic_int(hw
, addr
, reg
, val
, false);
306 * ixgbe_identify_phy_generic - Get physical layer module
307 * @hw: pointer to hardware structure
309 * Determines the physical layer module found on the current adapter.
311 s32
ixgbe_identify_phy_generic(struct ixgbe_hw
*hw
)
316 if (!hw
->phy
.phy_semaphore_mask
) {
318 hw
->phy
.phy_semaphore_mask
= IXGBE_GSSR_PHY1_SM
;
320 hw
->phy
.phy_semaphore_mask
= IXGBE_GSSR_PHY0_SM
;
323 if (hw
->phy
.type
== ixgbe_phy_unknown
) {
324 for (phy_addr
= 0; phy_addr
< IXGBE_MAX_PHY_ADDR
; phy_addr
++) {
325 hw
->phy
.mdio
.prtad
= phy_addr
;
326 if (mdio45_probe(&hw
->phy
.mdio
, phy_addr
) == 0) {
327 ixgbe_get_phy_id(hw
);
329 ixgbe_get_phy_type_from_id(hw
->phy
.id
);
331 if (hw
->phy
.type
== ixgbe_phy_unknown
) {
332 hw
->phy
.ops
.read_reg(hw
,
337 (MDIO_PMA_EXTABLE_10GBT
|
338 MDIO_PMA_EXTABLE_1000BT
))
340 ixgbe_phy_cu_unknown
;
349 /* clear value if nothing found */
350 hw
->phy
.mdio
.prtad
= 0;
351 return IXGBE_ERR_PHY_ADDR_INVALID
;
357 * ixgbe_check_reset_blocked - check status of MNG FW veto bit
358 * @hw: pointer to the hardware structure
360 * This function checks the MMNGC.MNG_VETO bit to see if there are
361 * any constraints on link from manageability. For MAC's that don't
362 * have this bit just return false since the link can not be blocked
365 bool ixgbe_check_reset_blocked(struct ixgbe_hw
*hw
)
369 /* If we don't have this bit, it can't be blocking */
370 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
373 mmngc
= IXGBE_READ_REG(hw
, IXGBE_MMNGC
);
374 if (mmngc
& IXGBE_MMNGC_MNG_VETO
) {
375 hw_dbg(hw
, "MNG_VETO bit detected.\n");
383 * ixgbe_get_phy_id - Get the phy type
384 * @hw: pointer to hardware structure
387 static s32
ixgbe_get_phy_id(struct ixgbe_hw
*hw
)
393 status
= hw
->phy
.ops
.read_reg(hw
, MDIO_DEVID1
, MDIO_MMD_PMAPMD
,
397 hw
->phy
.id
= (u32
)(phy_id_high
<< 16);
398 status
= hw
->phy
.ops
.read_reg(hw
, MDIO_DEVID2
, MDIO_MMD_PMAPMD
,
400 hw
->phy
.id
|= (u32
)(phy_id_low
& IXGBE_PHY_REVISION_MASK
);
401 hw
->phy
.revision
= (u32
)(phy_id_low
& ~IXGBE_PHY_REVISION_MASK
);
407 * ixgbe_get_phy_type_from_id - Get the phy type
408 * @hw: pointer to hardware structure
411 static enum ixgbe_phy_type
ixgbe_get_phy_type_from_id(u32 phy_id
)
413 enum ixgbe_phy_type phy_type
;
417 phy_type
= ixgbe_phy_tn
;
421 phy_type
= ixgbe_phy_aq
;
424 phy_type
= ixgbe_phy_qt
;
427 phy_type
= ixgbe_phy_nl
;
430 phy_type
= ixgbe_phy_x550em_ext_t
;
433 phy_type
= ixgbe_phy_unknown
;
441 * ixgbe_reset_phy_generic - Performs a PHY reset
442 * @hw: pointer to hardware structure
444 s32
ixgbe_reset_phy_generic(struct ixgbe_hw
*hw
)
450 if (hw
->phy
.type
== ixgbe_phy_unknown
)
451 status
= ixgbe_identify_phy_generic(hw
);
453 if (status
!= 0 || hw
->phy
.type
== ixgbe_phy_none
)
456 /* Don't reset PHY if it's shut down due to overtemp. */
457 if (!hw
->phy
.reset_if_overtemp
&&
458 (IXGBE_ERR_OVERTEMP
== hw
->phy
.ops
.check_overtemp(hw
)))
461 /* Blocked by MNG FW so bail */
462 if (ixgbe_check_reset_blocked(hw
))
466 * Perform soft PHY reset to the PHY_XS.
467 * This will cause a soft reset to the PHY
469 hw
->phy
.ops
.write_reg(hw
, MDIO_CTRL1
,
474 * Poll for reset bit to self-clear indicating reset is complete.
475 * Some PHYs could take up to 3 seconds to complete and need about
476 * 1.7 usec delay after the reset is complete.
478 for (i
= 0; i
< 30; i
++) {
480 hw
->phy
.ops
.read_reg(hw
, MDIO_CTRL1
,
481 MDIO_MMD_PHYXS
, &ctrl
);
482 if (!(ctrl
& MDIO_CTRL1_RESET
)) {
488 if (ctrl
& MDIO_CTRL1_RESET
) {
489 hw_dbg(hw
, "PHY reset polling failed to complete.\n");
490 return IXGBE_ERR_RESET_FAILED
;
497 * ixgbe_read_phy_mdi - Reads a value from a specified PHY register without
499 * @hw: pointer to hardware structure
500 * @reg_addr: 32 bit address of PHY register to read
501 * @phy_data: Pointer to read data from PHY register
503 s32
ixgbe_read_phy_reg_mdi(struct ixgbe_hw
*hw
, u32 reg_addr
, u32 device_type
,
506 u32 i
, data
, command
;
508 /* Setup and write the address cycle command */
509 command
= ((reg_addr
<< IXGBE_MSCA_NP_ADDR_SHIFT
) |
510 (device_type
<< IXGBE_MSCA_DEV_TYPE_SHIFT
) |
511 (hw
->phy
.mdio
.prtad
<< IXGBE_MSCA_PHY_ADDR_SHIFT
) |
512 (IXGBE_MSCA_ADDR_CYCLE
| IXGBE_MSCA_MDI_COMMAND
));
514 IXGBE_WRITE_REG(hw
, IXGBE_MSCA
, command
);
516 /* Check every 10 usec to see if the address cycle completed.
517 * The MDI Command bit will clear when the operation is
520 for (i
= 0; i
< IXGBE_MDIO_COMMAND_TIMEOUT
; i
++) {
523 command
= IXGBE_READ_REG(hw
, IXGBE_MSCA
);
524 if ((command
& IXGBE_MSCA_MDI_COMMAND
) == 0)
529 if ((command
& IXGBE_MSCA_MDI_COMMAND
) != 0) {
530 hw_dbg(hw
, "PHY address command did not complete.\n");
531 return IXGBE_ERR_PHY
;
534 /* Address cycle complete, setup and write the read
537 command
= ((reg_addr
<< IXGBE_MSCA_NP_ADDR_SHIFT
) |
538 (device_type
<< IXGBE_MSCA_DEV_TYPE_SHIFT
) |
539 (hw
->phy
.mdio
.prtad
<< IXGBE_MSCA_PHY_ADDR_SHIFT
) |
540 (IXGBE_MSCA_READ
| IXGBE_MSCA_MDI_COMMAND
));
542 IXGBE_WRITE_REG(hw
, IXGBE_MSCA
, command
);
544 /* Check every 10 usec to see if the address cycle
545 * completed. The MDI Command bit will clear when the
546 * operation is complete
548 for (i
= 0; i
< IXGBE_MDIO_COMMAND_TIMEOUT
; i
++) {
551 command
= IXGBE_READ_REG(hw
, IXGBE_MSCA
);
552 if ((command
& IXGBE_MSCA_MDI_COMMAND
) == 0)
556 if ((command
& IXGBE_MSCA_MDI_COMMAND
) != 0) {
557 hw_dbg(hw
, "PHY read command didn't complete\n");
558 return IXGBE_ERR_PHY
;
561 /* Read operation is complete. Get the data
564 data
= IXGBE_READ_REG(hw
, IXGBE_MSRWD
);
565 data
>>= IXGBE_MSRWD_READ_DATA_SHIFT
;
566 *phy_data
= (u16
)(data
);
572 * ixgbe_read_phy_reg_generic - Reads a value from a specified PHY register
573 * using the SWFW lock - this function is needed in most cases
574 * @hw: pointer to hardware structure
575 * @reg_addr: 32 bit address of PHY register to read
576 * @phy_data: Pointer to read data from PHY register
578 s32
ixgbe_read_phy_reg_generic(struct ixgbe_hw
*hw
, u32 reg_addr
,
579 u32 device_type
, u16
*phy_data
)
582 u32 gssr
= hw
->phy
.phy_semaphore_mask
;
584 if (hw
->mac
.ops
.acquire_swfw_sync(hw
, gssr
) == 0) {
585 status
= ixgbe_read_phy_reg_mdi(hw
, reg_addr
, device_type
,
587 hw
->mac
.ops
.release_swfw_sync(hw
, gssr
);
589 return IXGBE_ERR_SWFW_SYNC
;
596 * ixgbe_write_phy_reg_mdi - Writes a value to specified PHY register
598 * @hw: pointer to hardware structure
599 * @reg_addr: 32 bit PHY register to write
600 * @device_type: 5 bit device type
601 * @phy_data: Data to write to the PHY register
603 s32
ixgbe_write_phy_reg_mdi(struct ixgbe_hw
*hw
, u32 reg_addr
,
604 u32 device_type
, u16 phy_data
)
608 /* Put the data in the MDI single read and write data register*/
609 IXGBE_WRITE_REG(hw
, IXGBE_MSRWD
, (u32
)phy_data
);
611 /* Setup and write the address cycle command */
612 command
= ((reg_addr
<< IXGBE_MSCA_NP_ADDR_SHIFT
) |
613 (device_type
<< IXGBE_MSCA_DEV_TYPE_SHIFT
) |
614 (hw
->phy
.mdio
.prtad
<< IXGBE_MSCA_PHY_ADDR_SHIFT
) |
615 (IXGBE_MSCA_ADDR_CYCLE
| IXGBE_MSCA_MDI_COMMAND
));
617 IXGBE_WRITE_REG(hw
, IXGBE_MSCA
, command
);
620 * Check every 10 usec to see if the address cycle completed.
621 * The MDI Command bit will clear when the operation is
624 for (i
= 0; i
< IXGBE_MDIO_COMMAND_TIMEOUT
; i
++) {
627 command
= IXGBE_READ_REG(hw
, IXGBE_MSCA
);
628 if ((command
& IXGBE_MSCA_MDI_COMMAND
) == 0)
632 if ((command
& IXGBE_MSCA_MDI_COMMAND
) != 0) {
633 hw_dbg(hw
, "PHY address cmd didn't complete\n");
634 return IXGBE_ERR_PHY
;
638 * Address cycle complete, setup and write the write
641 command
= ((reg_addr
<< IXGBE_MSCA_NP_ADDR_SHIFT
) |
642 (device_type
<< IXGBE_MSCA_DEV_TYPE_SHIFT
) |
643 (hw
->phy
.mdio
.prtad
<< IXGBE_MSCA_PHY_ADDR_SHIFT
) |
644 (IXGBE_MSCA_WRITE
| IXGBE_MSCA_MDI_COMMAND
));
646 IXGBE_WRITE_REG(hw
, IXGBE_MSCA
, command
);
648 /* Check every 10 usec to see if the address cycle
649 * completed. The MDI Command bit will clear when the
650 * operation is complete
652 for (i
= 0; i
< IXGBE_MDIO_COMMAND_TIMEOUT
; i
++) {
655 command
= IXGBE_READ_REG(hw
, IXGBE_MSCA
);
656 if ((command
& IXGBE_MSCA_MDI_COMMAND
) == 0)
660 if ((command
& IXGBE_MSCA_MDI_COMMAND
) != 0) {
661 hw_dbg(hw
, "PHY write cmd didn't complete\n");
662 return IXGBE_ERR_PHY
;
669 * ixgbe_write_phy_reg_generic - Writes a value to specified PHY register
670 * using SWFW lock- this function is needed in most cases
671 * @hw: pointer to hardware structure
672 * @reg_addr: 32 bit PHY register to write
673 * @device_type: 5 bit device type
674 * @phy_data: Data to write to the PHY register
676 s32
ixgbe_write_phy_reg_generic(struct ixgbe_hw
*hw
, u32 reg_addr
,
677 u32 device_type
, u16 phy_data
)
680 u32 gssr
= hw
->phy
.phy_semaphore_mask
;
682 if (hw
->mac
.ops
.acquire_swfw_sync(hw
, gssr
) == 0) {
683 status
= ixgbe_write_phy_reg_mdi(hw
, reg_addr
, device_type
,
685 hw
->mac
.ops
.release_swfw_sync(hw
, gssr
);
687 return IXGBE_ERR_SWFW_SYNC
;
694 * ixgbe_setup_phy_link_generic - Set and restart autoneg
695 * @hw: pointer to hardware structure
697 * Restart autonegotiation and PHY and waits for completion.
699 s32
ixgbe_setup_phy_link_generic(struct ixgbe_hw
*hw
)
702 u16 autoneg_reg
= IXGBE_MII_AUTONEG_REG
;
703 bool autoneg
= false;
704 ixgbe_link_speed speed
;
706 ixgbe_get_copper_link_capabilities_generic(hw
, &speed
, &autoneg
);
708 if (speed
& IXGBE_LINK_SPEED_10GB_FULL
) {
709 /* Set or unset auto-negotiation 10G advertisement */
710 hw
->phy
.ops
.read_reg(hw
, MDIO_AN_10GBT_CTRL
,
714 autoneg_reg
&= ~MDIO_AN_10GBT_CTRL_ADV10G
;
715 if (hw
->phy
.autoneg_advertised
& IXGBE_LINK_SPEED_10GB_FULL
)
716 autoneg_reg
|= MDIO_AN_10GBT_CTRL_ADV10G
;
718 hw
->phy
.ops
.write_reg(hw
, MDIO_AN_10GBT_CTRL
,
723 if (speed
& IXGBE_LINK_SPEED_1GB_FULL
) {
724 /* Set or unset auto-negotiation 1G advertisement */
725 hw
->phy
.ops
.read_reg(hw
,
726 IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG
,
730 autoneg_reg
&= ~IXGBE_MII_1GBASE_T_ADVERTISE
;
731 if (hw
->phy
.autoneg_advertised
& IXGBE_LINK_SPEED_1GB_FULL
)
732 autoneg_reg
|= IXGBE_MII_1GBASE_T_ADVERTISE
;
734 hw
->phy
.ops
.write_reg(hw
,
735 IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG
,
740 if (speed
& IXGBE_LINK_SPEED_100_FULL
) {
741 /* Set or unset auto-negotiation 100M advertisement */
742 hw
->phy
.ops
.read_reg(hw
, MDIO_AN_ADVERTISE
,
746 autoneg_reg
&= ~(ADVERTISE_100FULL
|
748 if (hw
->phy
.autoneg_advertised
& IXGBE_LINK_SPEED_100_FULL
)
749 autoneg_reg
|= ADVERTISE_100FULL
;
751 hw
->phy
.ops
.write_reg(hw
, MDIO_AN_ADVERTISE
,
756 /* Blocked by MNG FW so don't reset PHY */
757 if (ixgbe_check_reset_blocked(hw
))
760 /* Restart PHY autonegotiation and wait for completion */
761 hw
->phy
.ops
.read_reg(hw
, MDIO_CTRL1
,
762 MDIO_MMD_AN
, &autoneg_reg
);
764 autoneg_reg
|= MDIO_AN_CTRL1_RESTART
;
766 hw
->phy
.ops
.write_reg(hw
, MDIO_CTRL1
,
767 MDIO_MMD_AN
, autoneg_reg
);
773 * ixgbe_setup_phy_link_speed_generic - Sets the auto advertised capabilities
774 * @hw: pointer to hardware structure
775 * @speed: new link speed
777 s32
ixgbe_setup_phy_link_speed_generic(struct ixgbe_hw
*hw
,
778 ixgbe_link_speed speed
,
779 bool autoneg_wait_to_complete
)
783 * Clear autoneg_advertised and set new values based on input link
786 hw
->phy
.autoneg_advertised
= 0;
788 if (speed
& IXGBE_LINK_SPEED_10GB_FULL
)
789 hw
->phy
.autoneg_advertised
|= IXGBE_LINK_SPEED_10GB_FULL
;
791 if (speed
& IXGBE_LINK_SPEED_1GB_FULL
)
792 hw
->phy
.autoneg_advertised
|= IXGBE_LINK_SPEED_1GB_FULL
;
794 if (speed
& IXGBE_LINK_SPEED_100_FULL
)
795 hw
->phy
.autoneg_advertised
|= IXGBE_LINK_SPEED_100_FULL
;
797 /* Setup link based on the new speed settings */
798 hw
->phy
.ops
.setup_link(hw
);
804 * ixgbe_get_copper_speeds_supported - Get copper link speed from phy
805 * @hw: pointer to hardware structure
807 * Determines the supported link capabilities by reading the PHY auto
808 * negotiation register.
810 static s32
ixgbe_get_copper_speeds_supported(struct ixgbe_hw
*hw
)
815 status
= hw
->phy
.ops
.read_reg(hw
, MDIO_SPEED
, MDIO_MMD_PMAPMD
,
820 if (speed_ability
& MDIO_SPEED_10G
)
821 hw
->phy
.speeds_supported
|= IXGBE_LINK_SPEED_10GB_FULL
;
822 if (speed_ability
& MDIO_PMA_SPEED_1000
)
823 hw
->phy
.speeds_supported
|= IXGBE_LINK_SPEED_1GB_FULL
;
824 if (speed_ability
& MDIO_PMA_SPEED_100
)
825 hw
->phy
.speeds_supported
|= IXGBE_LINK_SPEED_100_FULL
;
827 switch (hw
->mac
.type
) {
829 hw
->phy
.speeds_supported
|= IXGBE_LINK_SPEED_2_5GB_FULL
;
830 hw
->phy
.speeds_supported
|= IXGBE_LINK_SPEED_5GB_FULL
;
832 case ixgbe_mac_X550EM_x
:
833 hw
->phy
.speeds_supported
&= ~IXGBE_LINK_SPEED_100_FULL
;
843 * ixgbe_get_copper_link_capabilities_generic - Determines link capabilities
844 * @hw: pointer to hardware structure
845 * @speed: pointer to link speed
846 * @autoneg: boolean auto-negotiation value
848 s32
ixgbe_get_copper_link_capabilities_generic(struct ixgbe_hw
*hw
,
849 ixgbe_link_speed
*speed
,
855 if (!hw
->phy
.speeds_supported
)
856 status
= ixgbe_get_copper_speeds_supported(hw
);
858 *speed
= hw
->phy
.speeds_supported
;
863 * ixgbe_check_phy_link_tnx - Determine link and speed status
864 * @hw: pointer to hardware structure
866 * Reads the VS1 register to determine if link is up and the current speed for
869 s32
ixgbe_check_phy_link_tnx(struct ixgbe_hw
*hw
, ixgbe_link_speed
*speed
,
874 u32 max_time_out
= 10;
879 /* Initialize speed and link to default case */
881 *speed
= IXGBE_LINK_SPEED_10GB_FULL
;
884 * Check current speed and link status of the PHY register.
885 * This is a vendor specific register and may have to
886 * be changed for other copper PHYs.
888 for (time_out
= 0; time_out
< max_time_out
; time_out
++) {
890 status
= hw
->phy
.ops
.read_reg(hw
,
894 phy_link
= phy_data
&
895 IXGBE_MDIO_VENDOR_SPECIFIC_1_LINK_STATUS
;
896 phy_speed
= phy_data
&
897 IXGBE_MDIO_VENDOR_SPECIFIC_1_SPEED_STATUS
;
898 if (phy_link
== IXGBE_MDIO_VENDOR_SPECIFIC_1_LINK_STATUS
) {
901 IXGBE_MDIO_VENDOR_SPECIFIC_1_SPEED_STATUS
)
902 *speed
= IXGBE_LINK_SPEED_1GB_FULL
;
911 * ixgbe_setup_phy_link_tnx - Set and restart autoneg
912 * @hw: pointer to hardware structure
914 * Restart autonegotiation and PHY and waits for completion.
915 * This function always returns success, this is nessary since
916 * it is called via a function pointer that could call other
917 * functions that could return an error.
919 s32
ixgbe_setup_phy_link_tnx(struct ixgbe_hw
*hw
)
921 u16 autoneg_reg
= IXGBE_MII_AUTONEG_REG
;
922 bool autoneg
= false;
923 ixgbe_link_speed speed
;
925 ixgbe_get_copper_link_capabilities_generic(hw
, &speed
, &autoneg
);
927 if (speed
& IXGBE_LINK_SPEED_10GB_FULL
) {
928 /* Set or unset auto-negotiation 10G advertisement */
929 hw
->phy
.ops
.read_reg(hw
, MDIO_AN_10GBT_CTRL
,
933 autoneg_reg
&= ~MDIO_AN_10GBT_CTRL_ADV10G
;
934 if (hw
->phy
.autoneg_advertised
& IXGBE_LINK_SPEED_10GB_FULL
)
935 autoneg_reg
|= MDIO_AN_10GBT_CTRL_ADV10G
;
937 hw
->phy
.ops
.write_reg(hw
, MDIO_AN_10GBT_CTRL
,
942 if (speed
& IXGBE_LINK_SPEED_1GB_FULL
) {
943 /* Set or unset auto-negotiation 1G advertisement */
944 hw
->phy
.ops
.read_reg(hw
, IXGBE_MII_AUTONEG_XNP_TX_REG
,
948 autoneg_reg
&= ~IXGBE_MII_1GBASE_T_ADVERTISE_XNP_TX
;
949 if (hw
->phy
.autoneg_advertised
& IXGBE_LINK_SPEED_1GB_FULL
)
950 autoneg_reg
|= IXGBE_MII_1GBASE_T_ADVERTISE_XNP_TX
;
952 hw
->phy
.ops
.write_reg(hw
, IXGBE_MII_AUTONEG_XNP_TX_REG
,
957 if (speed
& IXGBE_LINK_SPEED_100_FULL
) {
958 /* Set or unset auto-negotiation 100M advertisement */
959 hw
->phy
.ops
.read_reg(hw
, MDIO_AN_ADVERTISE
,
963 autoneg_reg
&= ~(ADVERTISE_100FULL
|
965 if (hw
->phy
.autoneg_advertised
& IXGBE_LINK_SPEED_100_FULL
)
966 autoneg_reg
|= ADVERTISE_100FULL
;
968 hw
->phy
.ops
.write_reg(hw
, MDIO_AN_ADVERTISE
,
973 /* Blocked by MNG FW so don't reset PHY */
974 if (ixgbe_check_reset_blocked(hw
))
977 /* Restart PHY autonegotiation and wait for completion */
978 hw
->phy
.ops
.read_reg(hw
, MDIO_CTRL1
,
979 MDIO_MMD_AN
, &autoneg_reg
);
981 autoneg_reg
|= MDIO_AN_CTRL1_RESTART
;
983 hw
->phy
.ops
.write_reg(hw
, MDIO_CTRL1
,
984 MDIO_MMD_AN
, autoneg_reg
);
989 * ixgbe_get_phy_firmware_version_tnx - Gets the PHY Firmware Version
990 * @hw: pointer to hardware structure
991 * @firmware_version: pointer to the PHY Firmware Version
993 s32
ixgbe_get_phy_firmware_version_tnx(struct ixgbe_hw
*hw
,
994 u16
*firmware_version
)
998 status
= hw
->phy
.ops
.read_reg(hw
, TNX_FW_REV
,
1006 * ixgbe_get_phy_firmware_version_generic - Gets the PHY Firmware Version
1007 * @hw: pointer to hardware structure
1008 * @firmware_version: pointer to the PHY Firmware Version
1010 s32
ixgbe_get_phy_firmware_version_generic(struct ixgbe_hw
*hw
,
1011 u16
*firmware_version
)
1015 status
= hw
->phy
.ops
.read_reg(hw
, AQ_FW_REV
,
1023 * ixgbe_reset_phy_nl - Performs a PHY reset
1024 * @hw: pointer to hardware structure
1026 s32
ixgbe_reset_phy_nl(struct ixgbe_hw
*hw
)
1028 u16 phy_offset
, control
, eword
, edata
, block_crc
;
1029 bool end_data
= false;
1030 u16 list_offset
, data_offset
;
1035 /* Blocked by MNG FW so bail */
1036 if (ixgbe_check_reset_blocked(hw
))
1039 hw
->phy
.ops
.read_reg(hw
, MDIO_CTRL1
, MDIO_MMD_PHYXS
, &phy_data
);
1041 /* reset the PHY and poll for completion */
1042 hw
->phy
.ops
.write_reg(hw
, MDIO_CTRL1
, MDIO_MMD_PHYXS
,
1043 (phy_data
| MDIO_CTRL1_RESET
));
1045 for (i
= 0; i
< 100; i
++) {
1046 hw
->phy
.ops
.read_reg(hw
, MDIO_CTRL1
, MDIO_MMD_PHYXS
,
1048 if ((phy_data
& MDIO_CTRL1_RESET
) == 0)
1050 usleep_range(10000, 20000);
1053 if ((phy_data
& MDIO_CTRL1_RESET
) != 0) {
1054 hw_dbg(hw
, "PHY reset did not complete.\n");
1055 return IXGBE_ERR_PHY
;
1058 /* Get init offsets */
1059 ret_val
= ixgbe_get_sfp_init_sequence_offsets(hw
, &list_offset
,
1064 ret_val
= hw
->eeprom
.ops
.read(hw
, data_offset
, &block_crc
);
1068 * Read control word from PHY init contents offset
1070 ret_val
= hw
->eeprom
.ops
.read(hw
, data_offset
, &eword
);
1073 control
= (eword
& IXGBE_CONTROL_MASK_NL
) >>
1074 IXGBE_CONTROL_SHIFT_NL
;
1075 edata
= eword
& IXGBE_DATA_MASK_NL
;
1077 case IXGBE_DELAY_NL
:
1079 hw_dbg(hw
, "DELAY: %d MS\n", edata
);
1080 usleep_range(edata
* 1000, edata
* 2000);
1083 hw_dbg(hw
, "DATA:\n");
1085 ret_val
= hw
->eeprom
.ops
.read(hw
, data_offset
++,
1089 for (i
= 0; i
< edata
; i
++) {
1090 ret_val
= hw
->eeprom
.ops
.read(hw
, data_offset
,
1094 hw
->phy
.ops
.write_reg(hw
, phy_offset
,
1095 MDIO_MMD_PMAPMD
, eword
);
1096 hw_dbg(hw
, "Wrote %4.4x to %4.4x\n", eword
,
1102 case IXGBE_CONTROL_NL
:
1104 hw_dbg(hw
, "CONTROL:\n");
1105 if (edata
== IXGBE_CONTROL_EOL_NL
) {
1106 hw_dbg(hw
, "EOL\n");
1108 } else if (edata
== IXGBE_CONTROL_SOL_NL
) {
1109 hw_dbg(hw
, "SOL\n");
1111 hw_dbg(hw
, "Bad control value\n");
1112 return IXGBE_ERR_PHY
;
1116 hw_dbg(hw
, "Bad control type\n");
1117 return IXGBE_ERR_PHY
;
1124 hw_err(hw
, "eeprom read at offset %d failed\n", data_offset
);
1125 return IXGBE_ERR_PHY
;
1129 * ixgbe_identify_module_generic - Identifies module type
1130 * @hw: pointer to hardware structure
1132 * Determines HW type and calls appropriate function.
1134 s32
ixgbe_identify_module_generic(struct ixgbe_hw
*hw
)
1136 switch (hw
->mac
.ops
.get_media_type(hw
)) {
1137 case ixgbe_media_type_fiber
:
1138 return ixgbe_identify_sfp_module_generic(hw
);
1139 case ixgbe_media_type_fiber_qsfp
:
1140 return ixgbe_identify_qsfp_module_generic(hw
);
1142 hw
->phy
.sfp_type
= ixgbe_sfp_type_not_present
;
1143 return IXGBE_ERR_SFP_NOT_PRESENT
;
1146 return IXGBE_ERR_SFP_NOT_PRESENT
;
1150 * ixgbe_identify_sfp_module_generic - Identifies SFP modules
1151 * @hw: pointer to hardware structure
1153 * Searches for and identifies the SFP module and assigns appropriate PHY type.
1155 s32
ixgbe_identify_sfp_module_generic(struct ixgbe_hw
*hw
)
1157 struct ixgbe_adapter
*adapter
= hw
->back
;
1160 enum ixgbe_sfp_type stored_sfp_type
= hw
->phy
.sfp_type
;
1162 u8 comp_codes_1g
= 0;
1163 u8 comp_codes_10g
= 0;
1164 u8 oui_bytes
[3] = {0, 0, 0};
1167 u16 enforce_sfp
= 0;
1169 if (hw
->mac
.ops
.get_media_type(hw
) != ixgbe_media_type_fiber
) {
1170 hw
->phy
.sfp_type
= ixgbe_sfp_type_not_present
;
1171 return IXGBE_ERR_SFP_NOT_PRESENT
;
1174 /* LAN ID is needed for sfp_type determination */
1175 hw
->mac
.ops
.set_lan_id(hw
);
1177 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1178 IXGBE_SFF_IDENTIFIER
,
1182 goto err_read_i2c_eeprom
;
1184 if (identifier
!= IXGBE_SFF_IDENTIFIER_SFP
) {
1185 hw
->phy
.type
= ixgbe_phy_sfp_unsupported
;
1186 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1188 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1189 IXGBE_SFF_1GBE_COMP_CODES
,
1193 goto err_read_i2c_eeprom
;
1195 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1196 IXGBE_SFF_10GBE_COMP_CODES
,
1200 goto err_read_i2c_eeprom
;
1201 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1202 IXGBE_SFF_CABLE_TECHNOLOGY
,
1206 goto err_read_i2c_eeprom
;
1213 * 3 SFP_DA_CORE0 - 82599-specific
1214 * 4 SFP_DA_CORE1 - 82599-specific
1215 * 5 SFP_SR/LR_CORE0 - 82599-specific
1216 * 6 SFP_SR/LR_CORE1 - 82599-specific
1217 * 7 SFP_act_lmt_DA_CORE0 - 82599-specific
1218 * 8 SFP_act_lmt_DA_CORE1 - 82599-specific
1219 * 9 SFP_1g_cu_CORE0 - 82599-specific
1220 * 10 SFP_1g_cu_CORE1 - 82599-specific
1221 * 11 SFP_1g_sx_CORE0 - 82599-specific
1222 * 12 SFP_1g_sx_CORE1 - 82599-specific
1224 if (hw
->mac
.type
== ixgbe_mac_82598EB
) {
1225 if (cable_tech
& IXGBE_SFF_DA_PASSIVE_CABLE
)
1226 hw
->phy
.sfp_type
= ixgbe_sfp_type_da_cu
;
1227 else if (comp_codes_10g
& IXGBE_SFF_10GBASESR_CAPABLE
)
1228 hw
->phy
.sfp_type
= ixgbe_sfp_type_sr
;
1229 else if (comp_codes_10g
& IXGBE_SFF_10GBASELR_CAPABLE
)
1230 hw
->phy
.sfp_type
= ixgbe_sfp_type_lr
;
1232 hw
->phy
.sfp_type
= ixgbe_sfp_type_unknown
;
1233 } else if (hw
->mac
.type
== ixgbe_mac_82599EB
) {
1234 if (cable_tech
& IXGBE_SFF_DA_PASSIVE_CABLE
) {
1235 if (hw
->bus
.lan_id
== 0)
1237 ixgbe_sfp_type_da_cu_core0
;
1240 ixgbe_sfp_type_da_cu_core1
;
1241 } else if (cable_tech
& IXGBE_SFF_DA_ACTIVE_CABLE
) {
1242 hw
->phy
.ops
.read_i2c_eeprom(
1243 hw
, IXGBE_SFF_CABLE_SPEC_COMP
,
1246 IXGBE_SFF_DA_SPEC_ACTIVE_LIMITING
) {
1247 if (hw
->bus
.lan_id
== 0)
1249 ixgbe_sfp_type_da_act_lmt_core0
;
1252 ixgbe_sfp_type_da_act_lmt_core1
;
1255 ixgbe_sfp_type_unknown
;
1257 } else if (comp_codes_10g
&
1258 (IXGBE_SFF_10GBASESR_CAPABLE
|
1259 IXGBE_SFF_10GBASELR_CAPABLE
)) {
1260 if (hw
->bus
.lan_id
== 0)
1262 ixgbe_sfp_type_srlr_core0
;
1265 ixgbe_sfp_type_srlr_core1
;
1266 } else if (comp_codes_1g
& IXGBE_SFF_1GBASET_CAPABLE
) {
1267 if (hw
->bus
.lan_id
== 0)
1269 ixgbe_sfp_type_1g_cu_core0
;
1272 ixgbe_sfp_type_1g_cu_core1
;
1273 } else if (comp_codes_1g
& IXGBE_SFF_1GBASESX_CAPABLE
) {
1274 if (hw
->bus
.lan_id
== 0)
1276 ixgbe_sfp_type_1g_sx_core0
;
1279 ixgbe_sfp_type_1g_sx_core1
;
1280 } else if (comp_codes_1g
& IXGBE_SFF_1GBASELX_CAPABLE
) {
1281 if (hw
->bus
.lan_id
== 0)
1283 ixgbe_sfp_type_1g_lx_core0
;
1286 ixgbe_sfp_type_1g_lx_core1
;
1288 hw
->phy
.sfp_type
= ixgbe_sfp_type_unknown
;
1292 if (hw
->phy
.sfp_type
!= stored_sfp_type
)
1293 hw
->phy
.sfp_setup_needed
= true;
1295 /* Determine if the SFP+ PHY is dual speed or not. */
1296 hw
->phy
.multispeed_fiber
= false;
1297 if (((comp_codes_1g
& IXGBE_SFF_1GBASESX_CAPABLE
) &&
1298 (comp_codes_10g
& IXGBE_SFF_10GBASESR_CAPABLE
)) ||
1299 ((comp_codes_1g
& IXGBE_SFF_1GBASELX_CAPABLE
) &&
1300 (comp_codes_10g
& IXGBE_SFF_10GBASELR_CAPABLE
)))
1301 hw
->phy
.multispeed_fiber
= true;
1303 /* Determine PHY vendor */
1304 if (hw
->phy
.type
!= ixgbe_phy_nl
) {
1305 hw
->phy
.id
= identifier
;
1306 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1307 IXGBE_SFF_VENDOR_OUI_BYTE0
,
1311 goto err_read_i2c_eeprom
;
1313 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1314 IXGBE_SFF_VENDOR_OUI_BYTE1
,
1318 goto err_read_i2c_eeprom
;
1320 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1321 IXGBE_SFF_VENDOR_OUI_BYTE2
,
1325 goto err_read_i2c_eeprom
;
1328 ((oui_bytes
[0] << IXGBE_SFF_VENDOR_OUI_BYTE0_SHIFT
) |
1329 (oui_bytes
[1] << IXGBE_SFF_VENDOR_OUI_BYTE1_SHIFT
) |
1330 (oui_bytes
[2] << IXGBE_SFF_VENDOR_OUI_BYTE2_SHIFT
));
1332 switch (vendor_oui
) {
1333 case IXGBE_SFF_VENDOR_OUI_TYCO
:
1334 if (cable_tech
& IXGBE_SFF_DA_PASSIVE_CABLE
)
1336 ixgbe_phy_sfp_passive_tyco
;
1338 case IXGBE_SFF_VENDOR_OUI_FTL
:
1339 if (cable_tech
& IXGBE_SFF_DA_ACTIVE_CABLE
)
1340 hw
->phy
.type
= ixgbe_phy_sfp_ftl_active
;
1342 hw
->phy
.type
= ixgbe_phy_sfp_ftl
;
1344 case IXGBE_SFF_VENDOR_OUI_AVAGO
:
1345 hw
->phy
.type
= ixgbe_phy_sfp_avago
;
1347 case IXGBE_SFF_VENDOR_OUI_INTEL
:
1348 hw
->phy
.type
= ixgbe_phy_sfp_intel
;
1351 if (cable_tech
& IXGBE_SFF_DA_PASSIVE_CABLE
)
1353 ixgbe_phy_sfp_passive_unknown
;
1354 else if (cable_tech
& IXGBE_SFF_DA_ACTIVE_CABLE
)
1356 ixgbe_phy_sfp_active_unknown
;
1358 hw
->phy
.type
= ixgbe_phy_sfp_unknown
;
1363 /* Allow any DA cable vendor */
1364 if (cable_tech
& (IXGBE_SFF_DA_PASSIVE_CABLE
|
1365 IXGBE_SFF_DA_ACTIVE_CABLE
))
1368 /* Verify supported 1G SFP modules */
1369 if (comp_codes_10g
== 0 &&
1370 !(hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_cu_core1
||
1371 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_cu_core0
||
1372 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_lx_core0
||
1373 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_lx_core1
||
1374 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_sx_core0
||
1375 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_sx_core1
)) {
1376 hw
->phy
.type
= ixgbe_phy_sfp_unsupported
;
1377 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1380 /* Anything else 82598-based is supported */
1381 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
1384 hw
->mac
.ops
.get_device_caps(hw
, &enforce_sfp
);
1385 if (!(enforce_sfp
& IXGBE_DEVICE_CAPS_ALLOW_ANY_SFP
) &&
1386 !(hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_cu_core0
||
1387 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_cu_core1
||
1388 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_lx_core0
||
1389 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_lx_core1
||
1390 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_sx_core0
||
1391 hw
->phy
.sfp_type
== ixgbe_sfp_type_1g_sx_core1
)) {
1392 /* Make sure we're a supported PHY type */
1393 if (hw
->phy
.type
== ixgbe_phy_sfp_intel
)
1395 if (hw
->allow_unsupported_sfp
) {
1396 e_warn(drv
, "WARNING: Intel (R) Network Connections are quality tested using Intel (R) Ethernet Optics. Using untested modules is not supported and may cause unstable operation or damage to the module or the adapter. Intel Corporation is not responsible for any harm caused by using untested modules.\n");
1399 hw_dbg(hw
, "SFP+ module not supported\n");
1400 hw
->phy
.type
= ixgbe_phy_sfp_unsupported
;
1401 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1405 err_read_i2c_eeprom
:
1406 hw
->phy
.sfp_type
= ixgbe_sfp_type_not_present
;
1407 if (hw
->phy
.type
!= ixgbe_phy_nl
) {
1409 hw
->phy
.type
= ixgbe_phy_unknown
;
1411 return IXGBE_ERR_SFP_NOT_PRESENT
;
1415 * ixgbe_identify_qsfp_module_generic - Identifies QSFP modules
1416 * @hw: pointer to hardware structure
1418 * Searches for and identifies the QSFP module and assigns appropriate PHY type
1420 static s32
ixgbe_identify_qsfp_module_generic(struct ixgbe_hw
*hw
)
1422 struct ixgbe_adapter
*adapter
= hw
->back
;
1425 enum ixgbe_sfp_type stored_sfp_type
= hw
->phy
.sfp_type
;
1427 u8 comp_codes_1g
= 0;
1428 u8 comp_codes_10g
= 0;
1429 u8 oui_bytes
[3] = {0, 0, 0};
1430 u16 enforce_sfp
= 0;
1432 u8 cable_length
= 0;
1434 bool active_cable
= false;
1436 if (hw
->mac
.ops
.get_media_type(hw
) != ixgbe_media_type_fiber_qsfp
) {
1437 hw
->phy
.sfp_type
= ixgbe_sfp_type_not_present
;
1438 return IXGBE_ERR_SFP_NOT_PRESENT
;
1441 /* LAN ID is needed for sfp_type determination */
1442 hw
->mac
.ops
.set_lan_id(hw
);
1444 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
, IXGBE_SFF_IDENTIFIER
,
1448 goto err_read_i2c_eeprom
;
1450 if (identifier
!= IXGBE_SFF_IDENTIFIER_QSFP_PLUS
) {
1451 hw
->phy
.type
= ixgbe_phy_sfp_unsupported
;
1452 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1455 hw
->phy
.id
= identifier
;
1457 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
, IXGBE_SFF_QSFP_10GBE_COMP
,
1461 goto err_read_i2c_eeprom
;
1463 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
, IXGBE_SFF_QSFP_1GBE_COMP
,
1467 goto err_read_i2c_eeprom
;
1469 if (comp_codes_10g
& IXGBE_SFF_QSFP_DA_PASSIVE_CABLE
) {
1470 hw
->phy
.type
= ixgbe_phy_qsfp_passive_unknown
;
1471 if (hw
->bus
.lan_id
== 0)
1472 hw
->phy
.sfp_type
= ixgbe_sfp_type_da_cu_core0
;
1474 hw
->phy
.sfp_type
= ixgbe_sfp_type_da_cu_core1
;
1475 } else if (comp_codes_10g
& (IXGBE_SFF_10GBASESR_CAPABLE
|
1476 IXGBE_SFF_10GBASELR_CAPABLE
)) {
1477 if (hw
->bus
.lan_id
== 0)
1478 hw
->phy
.sfp_type
= ixgbe_sfp_type_srlr_core0
;
1480 hw
->phy
.sfp_type
= ixgbe_sfp_type_srlr_core1
;
1482 if (comp_codes_10g
& IXGBE_SFF_QSFP_DA_ACTIVE_CABLE
)
1483 active_cable
= true;
1485 if (!active_cable
) {
1486 /* check for active DA cables that pre-date
1489 hw
->phy
.ops
.read_i2c_eeprom(hw
,
1490 IXGBE_SFF_QSFP_CONNECTOR
,
1493 hw
->phy
.ops
.read_i2c_eeprom(hw
,
1494 IXGBE_SFF_QSFP_CABLE_LENGTH
,
1497 hw
->phy
.ops
.read_i2c_eeprom(hw
,
1498 IXGBE_SFF_QSFP_DEVICE_TECH
,
1502 IXGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE
) &&
1503 (cable_length
> 0) &&
1504 ((device_tech
>> 4) ==
1505 IXGBE_SFF_QSFP_TRANSMITER_850NM_VCSEL
))
1506 active_cable
= true;
1510 hw
->phy
.type
= ixgbe_phy_qsfp_active_unknown
;
1511 if (hw
->bus
.lan_id
== 0)
1513 ixgbe_sfp_type_da_act_lmt_core0
;
1516 ixgbe_sfp_type_da_act_lmt_core1
;
1518 /* unsupported module type */
1519 hw
->phy
.type
= ixgbe_phy_sfp_unsupported
;
1520 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1524 if (hw
->phy
.sfp_type
!= stored_sfp_type
)
1525 hw
->phy
.sfp_setup_needed
= true;
1527 /* Determine if the QSFP+ PHY is dual speed or not. */
1528 hw
->phy
.multispeed_fiber
= false;
1529 if (((comp_codes_1g
& IXGBE_SFF_1GBASESX_CAPABLE
) &&
1530 (comp_codes_10g
& IXGBE_SFF_10GBASESR_CAPABLE
)) ||
1531 ((comp_codes_1g
& IXGBE_SFF_1GBASELX_CAPABLE
) &&
1532 (comp_codes_10g
& IXGBE_SFF_10GBASELR_CAPABLE
)))
1533 hw
->phy
.multispeed_fiber
= true;
1535 /* Determine PHY vendor for optical modules */
1536 if (comp_codes_10g
& (IXGBE_SFF_10GBASESR_CAPABLE
|
1537 IXGBE_SFF_10GBASELR_CAPABLE
)) {
1538 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1539 IXGBE_SFF_QSFP_VENDOR_OUI_BYTE0
,
1543 goto err_read_i2c_eeprom
;
1545 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1546 IXGBE_SFF_QSFP_VENDOR_OUI_BYTE1
,
1550 goto err_read_i2c_eeprom
;
1552 status
= hw
->phy
.ops
.read_i2c_eeprom(hw
,
1553 IXGBE_SFF_QSFP_VENDOR_OUI_BYTE2
,
1557 goto err_read_i2c_eeprom
;
1560 ((oui_bytes
[0] << IXGBE_SFF_VENDOR_OUI_BYTE0_SHIFT
) |
1561 (oui_bytes
[1] << IXGBE_SFF_VENDOR_OUI_BYTE1_SHIFT
) |
1562 (oui_bytes
[2] << IXGBE_SFF_VENDOR_OUI_BYTE2_SHIFT
));
1564 if (vendor_oui
== IXGBE_SFF_VENDOR_OUI_INTEL
)
1565 hw
->phy
.type
= ixgbe_phy_qsfp_intel
;
1567 hw
->phy
.type
= ixgbe_phy_qsfp_unknown
;
1569 hw
->mac
.ops
.get_device_caps(hw
, &enforce_sfp
);
1570 if (!(enforce_sfp
& IXGBE_DEVICE_CAPS_ALLOW_ANY_SFP
)) {
1571 /* Make sure we're a supported PHY type */
1572 if (hw
->phy
.type
== ixgbe_phy_qsfp_intel
)
1574 if (hw
->allow_unsupported_sfp
) {
1575 e_warn(drv
, "WARNING: Intel (R) Network Connections are quality tested using Intel (R) Ethernet Optics. Using untested modules is not supported and may cause unstable operation or damage to the module or the adapter. Intel Corporation is not responsible for any harm caused by using untested modules.\n");
1578 hw_dbg(hw
, "QSFP module not supported\n");
1579 hw
->phy
.type
= ixgbe_phy_sfp_unsupported
;
1580 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1586 err_read_i2c_eeprom
:
1587 hw
->phy
.sfp_type
= ixgbe_sfp_type_not_present
;
1589 hw
->phy
.type
= ixgbe_phy_unknown
;
1591 return IXGBE_ERR_SFP_NOT_PRESENT
;
1595 * ixgbe_get_sfp_init_sequence_offsets - Provides offset of PHY init sequence
1596 * @hw: pointer to hardware structure
1597 * @list_offset: offset to the SFP ID list
1598 * @data_offset: offset to the SFP data block
1600 * Checks the MAC's EEPROM to see if it supports a given SFP+ module type, if
1601 * so it returns the offsets to the phy init sequence block.
1603 s32
ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw
*hw
,
1608 u16 sfp_type
= hw
->phy
.sfp_type
;
1610 if (hw
->phy
.sfp_type
== ixgbe_sfp_type_unknown
)
1611 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1613 if (hw
->phy
.sfp_type
== ixgbe_sfp_type_not_present
)
1614 return IXGBE_ERR_SFP_NOT_PRESENT
;
1616 if ((hw
->device_id
== IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM
) &&
1617 (hw
->phy
.sfp_type
== ixgbe_sfp_type_da_cu
))
1618 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1621 * Limiting active cables and 1G Phys must be initialized as
1624 if (sfp_type
== ixgbe_sfp_type_da_act_lmt_core0
||
1625 sfp_type
== ixgbe_sfp_type_1g_lx_core0
||
1626 sfp_type
== ixgbe_sfp_type_1g_cu_core0
||
1627 sfp_type
== ixgbe_sfp_type_1g_sx_core0
)
1628 sfp_type
= ixgbe_sfp_type_srlr_core0
;
1629 else if (sfp_type
== ixgbe_sfp_type_da_act_lmt_core1
||
1630 sfp_type
== ixgbe_sfp_type_1g_lx_core1
||
1631 sfp_type
== ixgbe_sfp_type_1g_cu_core1
||
1632 sfp_type
== ixgbe_sfp_type_1g_sx_core1
)
1633 sfp_type
= ixgbe_sfp_type_srlr_core1
;
1635 /* Read offset to PHY init contents */
1636 if (hw
->eeprom
.ops
.read(hw
, IXGBE_PHY_INIT_OFFSET_NL
, list_offset
)) {
1637 hw_err(hw
, "eeprom read at %d failed\n",
1638 IXGBE_PHY_INIT_OFFSET_NL
);
1639 return IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT
;
1642 if ((!*list_offset
) || (*list_offset
== 0xFFFF))
1643 return IXGBE_ERR_SFP_NO_INIT_SEQ_PRESENT
;
1645 /* Shift offset to first ID word */
1649 * Find the matching SFP ID in the EEPROM
1650 * and program the init sequence
1652 if (hw
->eeprom
.ops
.read(hw
, *list_offset
, &sfp_id
))
1655 while (sfp_id
!= IXGBE_PHY_INIT_END_NL
) {
1656 if (sfp_id
== sfp_type
) {
1658 if (hw
->eeprom
.ops
.read(hw
, *list_offset
, data_offset
))
1660 if ((!*data_offset
) || (*data_offset
== 0xFFFF)) {
1661 hw_dbg(hw
, "SFP+ module not supported\n");
1662 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1667 (*list_offset
) += 2;
1668 if (hw
->eeprom
.ops
.read(hw
, *list_offset
, &sfp_id
))
1673 if (sfp_id
== IXGBE_PHY_INIT_END_NL
) {
1674 hw_dbg(hw
, "No matching SFP+ module found\n");
1675 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
1681 hw_err(hw
, "eeprom read at offset %d failed\n", *list_offset
);
1682 return IXGBE_ERR_PHY
;
1686 * ixgbe_read_i2c_eeprom_generic - Reads 8 bit EEPROM word over I2C interface
1687 * @hw: pointer to hardware structure
1688 * @byte_offset: EEPROM byte offset to read
1689 * @eeprom_data: value read
1691 * Performs byte read operation to SFP module's EEPROM over I2C interface.
1693 s32
ixgbe_read_i2c_eeprom_generic(struct ixgbe_hw
*hw
, u8 byte_offset
,
1696 return hw
->phy
.ops
.read_i2c_byte(hw
, byte_offset
,
1697 IXGBE_I2C_EEPROM_DEV_ADDR
,
1702 * ixgbe_read_i2c_sff8472_generic - Reads 8 bit word over I2C interface
1703 * @hw: pointer to hardware structure
1704 * @byte_offset: byte offset at address 0xA2
1705 * @eeprom_data: value read
1707 * Performs byte read operation to SFP module's SFF-8472 data over I2C
1709 s32
ixgbe_read_i2c_sff8472_generic(struct ixgbe_hw
*hw
, u8 byte_offset
,
1712 return hw
->phy
.ops
.read_i2c_byte(hw
, byte_offset
,
1713 IXGBE_I2C_EEPROM_DEV_ADDR2
,
1718 * ixgbe_write_i2c_eeprom_generic - Writes 8 bit EEPROM word over I2C interface
1719 * @hw: pointer to hardware structure
1720 * @byte_offset: EEPROM byte offset to write
1721 * @eeprom_data: value to write
1723 * Performs byte write operation to SFP module's EEPROM over I2C interface.
1725 s32
ixgbe_write_i2c_eeprom_generic(struct ixgbe_hw
*hw
, u8 byte_offset
,
1728 return hw
->phy
.ops
.write_i2c_byte(hw
, byte_offset
,
1729 IXGBE_I2C_EEPROM_DEV_ADDR
,
1734 * ixgbe_read_i2c_byte_generic_int - Reads 8 bit word over I2C
1735 * @hw: pointer to hardware structure
1736 * @byte_offset: byte offset to read
1738 * @lock: true if to take and release semaphore
1740 * Performs byte read operation to SFP module's EEPROM over I2C interface at
1741 * a specified device address.
1743 static s32
ixgbe_read_i2c_byte_generic_int(struct ixgbe_hw
*hw
, u8 byte_offset
,
1744 u8 dev_addr
, u8
*data
, bool lock
)
1749 u32 swfw_mask
= hw
->phy
.phy_semaphore_mask
;
1755 if (lock
&& hw
->mac
.ops
.acquire_swfw_sync(hw
, swfw_mask
))
1756 return IXGBE_ERR_SWFW_SYNC
;
1758 ixgbe_i2c_start(hw
);
1760 /* Device Address and write indication */
1761 status
= ixgbe_clock_out_i2c_byte(hw
, dev_addr
);
1765 status
= ixgbe_get_i2c_ack(hw
);
1769 status
= ixgbe_clock_out_i2c_byte(hw
, byte_offset
);
1773 status
= ixgbe_get_i2c_ack(hw
);
1777 ixgbe_i2c_start(hw
);
1779 /* Device Address and read indication */
1780 status
= ixgbe_clock_out_i2c_byte(hw
, (dev_addr
| 0x1));
1784 status
= ixgbe_get_i2c_ack(hw
);
1788 status
= ixgbe_clock_in_i2c_byte(hw
, data
);
1792 status
= ixgbe_clock_out_i2c_bit(hw
, nack
);
1798 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
1802 ixgbe_i2c_bus_clear(hw
);
1804 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
1808 if (retry
< max_retry
)
1809 hw_dbg(hw
, "I2C byte read error - Retrying.\n");
1811 hw_dbg(hw
, "I2C byte read error.\n");
1813 } while (retry
< max_retry
);
1819 * ixgbe_read_i2c_byte_generic - Reads 8 bit word over I2C
1820 * @hw: pointer to hardware structure
1821 * @byte_offset: byte offset to read
1824 * Performs byte read operation to SFP module's EEPROM over I2C interface at
1825 * a specified device address.
1827 s32
ixgbe_read_i2c_byte_generic(struct ixgbe_hw
*hw
, u8 byte_offset
,
1828 u8 dev_addr
, u8
*data
)
1830 return ixgbe_read_i2c_byte_generic_int(hw
, byte_offset
, dev_addr
,
1835 * ixgbe_read_i2c_byte_generic_unlocked - Reads 8 bit word over I2C
1836 * @hw: pointer to hardware structure
1837 * @byte_offset: byte offset to read
1840 * Performs byte read operation to SFP module's EEPROM over I2C interface at
1841 * a specified device address.
1843 s32
ixgbe_read_i2c_byte_generic_unlocked(struct ixgbe_hw
*hw
, u8 byte_offset
,
1844 u8 dev_addr
, u8
*data
)
1846 return ixgbe_read_i2c_byte_generic_int(hw
, byte_offset
, dev_addr
,
1851 * ixgbe_write_i2c_byte_generic_int - Writes 8 bit word over I2C
1852 * @hw: pointer to hardware structure
1853 * @byte_offset: byte offset to write
1854 * @data: value to write
1855 * @lock: true if to take and release semaphore
1857 * Performs byte write operation to SFP module's EEPROM over I2C interface at
1858 * a specified device address.
1860 static s32
ixgbe_write_i2c_byte_generic_int(struct ixgbe_hw
*hw
, u8 byte_offset
,
1861 u8 dev_addr
, u8 data
, bool lock
)
1866 u32 swfw_mask
= hw
->phy
.phy_semaphore_mask
;
1868 if (lock
&& hw
->mac
.ops
.acquire_swfw_sync(hw
, swfw_mask
))
1869 return IXGBE_ERR_SWFW_SYNC
;
1872 ixgbe_i2c_start(hw
);
1874 status
= ixgbe_clock_out_i2c_byte(hw
, dev_addr
);
1878 status
= ixgbe_get_i2c_ack(hw
);
1882 status
= ixgbe_clock_out_i2c_byte(hw
, byte_offset
);
1886 status
= ixgbe_get_i2c_ack(hw
);
1890 status
= ixgbe_clock_out_i2c_byte(hw
, data
);
1894 status
= ixgbe_get_i2c_ack(hw
);
1900 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
1904 ixgbe_i2c_bus_clear(hw
);
1906 if (retry
< max_retry
)
1907 hw_dbg(hw
, "I2C byte write error - Retrying.\n");
1909 hw_dbg(hw
, "I2C byte write error.\n");
1910 } while (retry
< max_retry
);
1913 hw
->mac
.ops
.release_swfw_sync(hw
, swfw_mask
);
1919 * ixgbe_write_i2c_byte_generic - Writes 8 bit word over I2C
1920 * @hw: pointer to hardware structure
1921 * @byte_offset: byte offset to write
1922 * @data: value to write
1924 * Performs byte write operation to SFP module's EEPROM over I2C interface at
1925 * a specified device address.
1927 s32
ixgbe_write_i2c_byte_generic(struct ixgbe_hw
*hw
, u8 byte_offset
,
1928 u8 dev_addr
, u8 data
)
1930 return ixgbe_write_i2c_byte_generic_int(hw
, byte_offset
, dev_addr
,
1935 * ixgbe_write_i2c_byte_generic_unlocked - Writes 8 bit word over I2C
1936 * @hw: pointer to hardware structure
1937 * @byte_offset: byte offset to write
1938 * @data: value to write
1940 * Performs byte write operation to SFP module's EEPROM over I2C interface at
1941 * a specified device address.
1943 s32
ixgbe_write_i2c_byte_generic_unlocked(struct ixgbe_hw
*hw
, u8 byte_offset
,
1944 u8 dev_addr
, u8 data
)
1946 return ixgbe_write_i2c_byte_generic_int(hw
, byte_offset
, dev_addr
,
1951 * ixgbe_i2c_start - Sets I2C start condition
1952 * @hw: pointer to hardware structure
1954 * Sets I2C start condition (High -> Low on SDA while SCL is High)
1955 * Set bit-bang mode on X550 hardware.
1957 static void ixgbe_i2c_start(struct ixgbe_hw
*hw
)
1959 u32 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
1961 i2cctl
|= IXGBE_I2C_BB_EN(hw
);
1963 /* Start condition must begin with data and clock high */
1964 ixgbe_set_i2c_data(hw
, &i2cctl
, 1);
1965 ixgbe_raise_i2c_clk(hw
, &i2cctl
);
1967 /* Setup time for start condition (4.7us) */
1968 udelay(IXGBE_I2C_T_SU_STA
);
1970 ixgbe_set_i2c_data(hw
, &i2cctl
, 0);
1972 /* Hold time for start condition (4us) */
1973 udelay(IXGBE_I2C_T_HD_STA
);
1975 ixgbe_lower_i2c_clk(hw
, &i2cctl
);
1977 /* Minimum low period of clock is 4.7 us */
1978 udelay(IXGBE_I2C_T_LOW
);
1983 * ixgbe_i2c_stop - Sets I2C stop condition
1984 * @hw: pointer to hardware structure
1986 * Sets I2C stop condition (Low -> High on SDA while SCL is High)
1987 * Disables bit-bang mode and negates data output enable on X550
1990 static void ixgbe_i2c_stop(struct ixgbe_hw
*hw
)
1992 u32 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
1993 u32 data_oe_bit
= IXGBE_I2C_DATA_OE_N_EN(hw
);
1994 u32 clk_oe_bit
= IXGBE_I2C_CLK_OE_N_EN(hw
);
1995 u32 bb_en_bit
= IXGBE_I2C_BB_EN(hw
);
1997 /* Stop condition must begin with data low and clock high */
1998 ixgbe_set_i2c_data(hw
, &i2cctl
, 0);
1999 ixgbe_raise_i2c_clk(hw
, &i2cctl
);
2001 /* Setup time for stop condition (4us) */
2002 udelay(IXGBE_I2C_T_SU_STO
);
2004 ixgbe_set_i2c_data(hw
, &i2cctl
, 1);
2006 /* bus free time between stop and start (4.7us)*/
2007 udelay(IXGBE_I2C_T_BUF
);
2009 if (bb_en_bit
|| data_oe_bit
|| clk_oe_bit
) {
2010 i2cctl
&= ~bb_en_bit
;
2011 i2cctl
|= data_oe_bit
| clk_oe_bit
;
2012 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), i2cctl
);
2013 IXGBE_WRITE_FLUSH(hw
);
2018 * ixgbe_clock_in_i2c_byte - Clocks in one byte via I2C
2019 * @hw: pointer to hardware structure
2020 * @data: data byte to clock in
2022 * Clocks in one byte data via I2C data/clock
2024 static s32
ixgbe_clock_in_i2c_byte(struct ixgbe_hw
*hw
, u8
*data
)
2030 for (i
= 7; i
>= 0; i
--) {
2031 ixgbe_clock_in_i2c_bit(hw
, &bit
);
2039 * ixgbe_clock_out_i2c_byte - Clocks out one byte via I2C
2040 * @hw: pointer to hardware structure
2041 * @data: data byte clocked out
2043 * Clocks out one byte data via I2C data/clock
2045 static s32
ixgbe_clock_out_i2c_byte(struct ixgbe_hw
*hw
, u8 data
)
2052 for (i
= 7; i
>= 0; i
--) {
2053 bit
= (data
>> i
) & 0x1;
2054 status
= ixgbe_clock_out_i2c_bit(hw
, bit
);
2060 /* Release SDA line (set high) */
2061 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2062 i2cctl
|= IXGBE_I2C_DATA_OUT(hw
);
2063 i2cctl
|= IXGBE_I2C_DATA_OE_N_EN(hw
);
2064 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), i2cctl
);
2065 IXGBE_WRITE_FLUSH(hw
);
2071 * ixgbe_get_i2c_ack - Polls for I2C ACK
2072 * @hw: pointer to hardware structure
2074 * Clocks in/out one bit via I2C data/clock
2076 static s32
ixgbe_get_i2c_ack(struct ixgbe_hw
*hw
)
2078 u32 data_oe_bit
= IXGBE_I2C_DATA_OE_N_EN(hw
);
2081 u32 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2086 i2cctl
|= IXGBE_I2C_DATA_OUT(hw
);
2087 i2cctl
|= data_oe_bit
;
2088 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), i2cctl
);
2089 IXGBE_WRITE_FLUSH(hw
);
2091 ixgbe_raise_i2c_clk(hw
, &i2cctl
);
2093 /* Minimum high period of clock is 4us */
2094 udelay(IXGBE_I2C_T_HIGH
);
2096 /* Poll for ACK. Note that ACK in I2C spec is
2097 * transition from 1 to 0 */
2098 for (i
= 0; i
< timeout
; i
++) {
2099 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2100 ack
= ixgbe_get_i2c_data(hw
, &i2cctl
);
2108 hw_dbg(hw
, "I2C ack was not received.\n");
2109 status
= IXGBE_ERR_I2C
;
2112 ixgbe_lower_i2c_clk(hw
, &i2cctl
);
2114 /* Minimum low period of clock is 4.7 us */
2115 udelay(IXGBE_I2C_T_LOW
);
2121 * ixgbe_clock_in_i2c_bit - Clocks in one bit via I2C data/clock
2122 * @hw: pointer to hardware structure
2123 * @data: read data value
2125 * Clocks in one bit via I2C data/clock
2127 static s32
ixgbe_clock_in_i2c_bit(struct ixgbe_hw
*hw
, bool *data
)
2129 u32 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2130 u32 data_oe_bit
= IXGBE_I2C_DATA_OE_N_EN(hw
);
2133 i2cctl
|= IXGBE_I2C_DATA_OUT(hw
);
2134 i2cctl
|= data_oe_bit
;
2135 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), i2cctl
);
2136 IXGBE_WRITE_FLUSH(hw
);
2138 ixgbe_raise_i2c_clk(hw
, &i2cctl
);
2140 /* Minimum high period of clock is 4us */
2141 udelay(IXGBE_I2C_T_HIGH
);
2143 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2144 *data
= ixgbe_get_i2c_data(hw
, &i2cctl
);
2146 ixgbe_lower_i2c_clk(hw
, &i2cctl
);
2148 /* Minimum low period of clock is 4.7 us */
2149 udelay(IXGBE_I2C_T_LOW
);
2155 * ixgbe_clock_out_i2c_bit - Clocks in/out one bit via I2C data/clock
2156 * @hw: pointer to hardware structure
2157 * @data: data value to write
2159 * Clocks out one bit via I2C data/clock
2161 static s32
ixgbe_clock_out_i2c_bit(struct ixgbe_hw
*hw
, bool data
)
2164 u32 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2166 status
= ixgbe_set_i2c_data(hw
, &i2cctl
, data
);
2168 ixgbe_raise_i2c_clk(hw
, &i2cctl
);
2170 /* Minimum high period of clock is 4us */
2171 udelay(IXGBE_I2C_T_HIGH
);
2173 ixgbe_lower_i2c_clk(hw
, &i2cctl
);
2175 /* Minimum low period of clock is 4.7 us.
2176 * This also takes care of the data hold time.
2178 udelay(IXGBE_I2C_T_LOW
);
2180 hw_dbg(hw
, "I2C data was not set to %X\n", data
);
2181 return IXGBE_ERR_I2C
;
2187 * ixgbe_raise_i2c_clk - Raises the I2C SCL clock
2188 * @hw: pointer to hardware structure
2189 * @i2cctl: Current value of I2CCTL register
2191 * Raises the I2C clock line '0'->'1'
2192 * Negates the I2C clock output enable on X550 hardware.
2194 static void ixgbe_raise_i2c_clk(struct ixgbe_hw
*hw
, u32
*i2cctl
)
2196 u32 clk_oe_bit
= IXGBE_I2C_CLK_OE_N_EN(hw
);
2198 u32 timeout
= IXGBE_I2C_CLOCK_STRETCHING_TIMEOUT
;
2202 *i2cctl
|= clk_oe_bit
;
2203 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), *i2cctl
);
2206 for (i
= 0; i
< timeout
; i
++) {
2207 *i2cctl
|= IXGBE_I2C_CLK_OUT(hw
);
2208 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), *i2cctl
);
2209 IXGBE_WRITE_FLUSH(hw
);
2210 /* SCL rise time (1000ns) */
2211 udelay(IXGBE_I2C_T_RISE
);
2213 i2cctl_r
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2214 if (i2cctl_r
& IXGBE_I2C_CLK_IN(hw
))
2220 * ixgbe_lower_i2c_clk - Lowers the I2C SCL clock
2221 * @hw: pointer to hardware structure
2222 * @i2cctl: Current value of I2CCTL register
2224 * Lowers the I2C clock line '1'->'0'
2225 * Asserts the I2C clock output enable on X550 hardware.
2227 static void ixgbe_lower_i2c_clk(struct ixgbe_hw
*hw
, u32
*i2cctl
)
2230 *i2cctl
&= ~IXGBE_I2C_CLK_OUT(hw
);
2231 *i2cctl
&= ~IXGBE_I2C_CLK_OE_N_EN(hw
);
2233 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), *i2cctl
);
2234 IXGBE_WRITE_FLUSH(hw
);
2236 /* SCL fall time (300ns) */
2237 udelay(IXGBE_I2C_T_FALL
);
2241 * ixgbe_set_i2c_data - Sets the I2C data bit
2242 * @hw: pointer to hardware structure
2243 * @i2cctl: Current value of I2CCTL register
2244 * @data: I2C data value (0 or 1) to set
2246 * Sets the I2C data bit
2247 * Asserts the I2C data output enable on X550 hardware.
2249 static s32
ixgbe_set_i2c_data(struct ixgbe_hw
*hw
, u32
*i2cctl
, bool data
)
2251 u32 data_oe_bit
= IXGBE_I2C_DATA_OE_N_EN(hw
);
2254 *i2cctl
|= IXGBE_I2C_DATA_OUT(hw
);
2256 *i2cctl
&= ~IXGBE_I2C_DATA_OUT(hw
);
2257 *i2cctl
&= ~data_oe_bit
;
2259 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), *i2cctl
);
2260 IXGBE_WRITE_FLUSH(hw
);
2262 /* Data rise/fall (1000ns/300ns) and set-up time (250ns) */
2263 udelay(IXGBE_I2C_T_RISE
+ IXGBE_I2C_T_FALL
+ IXGBE_I2C_T_SU_DATA
);
2265 if (!data
) /* Can't verify data in this case */
2268 *i2cctl
|= data_oe_bit
;
2269 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), *i2cctl
);
2270 IXGBE_WRITE_FLUSH(hw
);
2273 /* Verify data was set correctly */
2274 *i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2275 if (data
!= ixgbe_get_i2c_data(hw
, i2cctl
)) {
2276 hw_dbg(hw
, "Error - I2C data was not set to %X.\n", data
);
2277 return IXGBE_ERR_I2C
;
2284 * ixgbe_get_i2c_data - Reads the I2C SDA data bit
2285 * @hw: pointer to hardware structure
2286 * @i2cctl: Current value of I2CCTL register
2288 * Returns the I2C data bit value
2289 * Negates the I2C data output enable on X550 hardware.
2291 static bool ixgbe_get_i2c_data(struct ixgbe_hw
*hw
, u32
*i2cctl
)
2293 u32 data_oe_bit
= IXGBE_I2C_DATA_OE_N_EN(hw
);
2296 *i2cctl
|= data_oe_bit
;
2297 IXGBE_WRITE_REG(hw
, IXGBE_I2CCTL(hw
), *i2cctl
);
2298 IXGBE_WRITE_FLUSH(hw
);
2299 udelay(IXGBE_I2C_T_FALL
);
2302 if (*i2cctl
& IXGBE_I2C_DATA_IN(hw
))
2308 * ixgbe_i2c_bus_clear - Clears the I2C bus
2309 * @hw: pointer to hardware structure
2311 * Clears the I2C bus by sending nine clock pulses.
2312 * Used when data line is stuck low.
2314 static void ixgbe_i2c_bus_clear(struct ixgbe_hw
*hw
)
2319 ixgbe_i2c_start(hw
);
2320 i2cctl
= IXGBE_READ_REG(hw
, IXGBE_I2CCTL(hw
));
2322 ixgbe_set_i2c_data(hw
, &i2cctl
, 1);
2324 for (i
= 0; i
< 9; i
++) {
2325 ixgbe_raise_i2c_clk(hw
, &i2cctl
);
2327 /* Min high period of clock is 4us */
2328 udelay(IXGBE_I2C_T_HIGH
);
2330 ixgbe_lower_i2c_clk(hw
, &i2cctl
);
2332 /* Min low period of clock is 4.7us*/
2333 udelay(IXGBE_I2C_T_LOW
);
2336 ixgbe_i2c_start(hw
);
2338 /* Put the i2c bus back to default state */
2343 * ixgbe_tn_check_overtemp - Checks if an overtemp occurred.
2344 * @hw: pointer to hardware structure
2346 * Checks if the LASI temp alarm status was triggered due to overtemp
2348 s32
ixgbe_tn_check_overtemp(struct ixgbe_hw
*hw
)
2352 if (hw
->device_id
!= IXGBE_DEV_ID_82599_T3_LOM
)
2355 /* Check that the LASI temp alarm status was triggered */
2356 hw
->phy
.ops
.read_reg(hw
, IXGBE_TN_LASI_STATUS_REG
,
2357 MDIO_MMD_PMAPMD
, &phy_data
);
2359 if (!(phy_data
& IXGBE_TN_LASI_STATUS_TEMP_ALARM
))
2362 return IXGBE_ERR_OVERTEMP
;
2365 /** ixgbe_set_copper_phy_power - Control power for copper phy
2366 * @hw: pointer to hardware structure
2367 * @on: true for on, false for off
2369 s32
ixgbe_set_copper_phy_power(struct ixgbe_hw
*hw
, bool on
)
2374 /* Bail if we don't have copper phy */
2375 if (hw
->mac
.ops
.get_media_type(hw
) != ixgbe_media_type_copper
)
2378 status
= hw
->phy
.ops
.read_reg(hw
, IXGBE_MDIO_VENDOR_SPECIFIC_1_CONTROL
,
2379 IXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE
,
2385 reg
&= ~IXGBE_MDIO_PHY_SET_LOW_POWER_MODE
;
2387 if (ixgbe_check_reset_blocked(hw
))
2389 reg
|= IXGBE_MDIO_PHY_SET_LOW_POWER_MODE
;
2392 status
= hw
->phy
.ops
.write_reg(hw
, IXGBE_MDIO_VENDOR_SPECIFIC_1_CONTROL
,
2393 IXGBE_MDIO_VENDOR_SPECIFIC_1_DEV_TYPE
,