1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
5 #include <linux/delay.h>
6 #include <linux/sched.h>
10 #include "ixgbe_phy.h"
12 #define IXGBE_82598_MAX_TX_QUEUES 32
13 #define IXGBE_82598_MAX_RX_QUEUES 64
14 #define IXGBE_82598_RAR_ENTRIES 16
15 #define IXGBE_82598_MC_TBL_SIZE 128
16 #define IXGBE_82598_VFT_TBL_SIZE 128
17 #define IXGBE_82598_RX_PB_SIZE 512
19 static int ixgbe_setup_copper_link_82598(struct ixgbe_hw
*hw
,
20 ixgbe_link_speed speed
,
21 bool autoneg_wait_to_complete
);
22 static int ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw
*hw
, u8 byte_offset
,
26 * ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
27 * @hw: pointer to the HW structure
29 * The defaults for 82598 should be in the range of 50us to 50ms,
30 * however the hardware default for these parts is 500us to 1ms which is less
31 * than the 10ms recommended by the pci-e spec. To address this we need to
32 * increase the value to either 10ms to 250ms for capability version 1 config,
33 * or 16ms to 55ms for version 2.
35 static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw
*hw
)
37 u32 gcr
= IXGBE_READ_REG(hw
, IXGBE_GCR
);
40 if (ixgbe_removed(hw
->hw_addr
))
43 /* only take action if timeout value is defaulted to 0 */
44 if (gcr
& IXGBE_GCR_CMPL_TMOUT_MASK
)
48 * if capababilities version is type 1 we can write the
49 * timeout of 10ms to 250ms through the GCR register
51 if (!(gcr
& IXGBE_GCR_CAP_VER2
)) {
52 gcr
|= IXGBE_GCR_CMPL_TMOUT_10ms
;
57 * for version 2 capabilities we need to write the config space
58 * directly in order to set the completion timeout value for
61 pcie_devctl2
= ixgbe_read_pci_cfg_word(hw
, IXGBE_PCI_DEVICE_CONTROL2
);
62 pcie_devctl2
|= IXGBE_PCI_DEVICE_CONTROL2_16ms
;
63 ixgbe_write_pci_cfg_word(hw
, IXGBE_PCI_DEVICE_CONTROL2
, pcie_devctl2
);
65 /* disable completion timeout resend */
66 gcr
&= ~IXGBE_GCR_CMPL_TMOUT_RESEND
;
67 IXGBE_WRITE_REG(hw
, IXGBE_GCR
, gcr
);
70 static int ixgbe_get_invariants_82598(struct ixgbe_hw
*hw
)
72 struct ixgbe_mac_info
*mac
= &hw
->mac
;
74 /* Call PHY identify routine to get the phy type */
75 ixgbe_identify_phy_generic(hw
);
77 mac
->mcft_size
= IXGBE_82598_MC_TBL_SIZE
;
78 mac
->vft_size
= IXGBE_82598_VFT_TBL_SIZE
;
79 mac
->num_rar_entries
= IXGBE_82598_RAR_ENTRIES
;
80 mac
->rx_pb_size
= IXGBE_82598_RX_PB_SIZE
;
81 mac
->max_rx_queues
= IXGBE_82598_MAX_RX_QUEUES
;
82 mac
->max_tx_queues
= IXGBE_82598_MAX_TX_QUEUES
;
83 mac
->max_msix_vectors
= ixgbe_get_pcie_msix_count_generic(hw
);
89 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
90 * @hw: pointer to hardware structure
92 * Initialize any function pointers that were not able to be
93 * set during get_invariants because the PHY/SFP type was
94 * not known. Perform the SFP init if necessary.
97 static int ixgbe_init_phy_ops_82598(struct ixgbe_hw
*hw
)
99 struct ixgbe_mac_info
*mac
= &hw
->mac
;
100 struct ixgbe_phy_info
*phy
= &hw
->phy
;
101 u16 list_offset
, data_offset
;
104 /* Identify the PHY */
105 phy
->ops
.identify(hw
);
107 /* Overwrite the link function pointers if copper PHY */
108 if (mac
->ops
.get_media_type(hw
) == ixgbe_media_type_copper
) {
109 mac
->ops
.setup_link
= &ixgbe_setup_copper_link_82598
;
110 mac
->ops
.get_link_capabilities
=
111 &ixgbe_get_copper_link_capabilities_generic
;
114 switch (hw
->phy
.type
) {
116 phy
->ops
.setup_link
= &ixgbe_setup_phy_link_tnx
;
117 phy
->ops
.check_link
= &ixgbe_check_phy_link_tnx
;
120 phy
->ops
.reset
= &ixgbe_reset_phy_nl
;
122 /* Call SFP+ identify routine to get the SFP+ module type */
123 ret_val
= phy
->ops
.identify_sfp(hw
);
126 if (hw
->phy
.sfp_type
== ixgbe_sfp_type_unknown
)
129 /* Check to see if SFP+ module is supported */
130 ret_val
= ixgbe_get_sfp_init_sequence_offsets(hw
,
144 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
145 * @hw: pointer to hardware structure
147 * Starts the hardware using the generic start_hw function.
148 * Disables relaxed ordering for archs other than SPARC
149 * Then set pcie completion timeout
152 static int ixgbe_start_hw_82598(struct ixgbe_hw
*hw
)
156 ret_val
= ixgbe_start_hw_generic(hw
);
160 /* set the completion timeout for interface */
161 ixgbe_set_pcie_completion_timeout(hw
);
167 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
168 * @hw: pointer to hardware structure
169 * @speed: pointer to link speed
170 * @autoneg: boolean auto-negotiation value
172 * Determines the link capabilities by reading the AUTOC register.
174 static int ixgbe_get_link_capabilities_82598(struct ixgbe_hw
*hw
,
175 ixgbe_link_speed
*speed
,
181 * Determine link capabilities based on the stored value of AUTOC,
182 * which represents EEPROM defaults. If AUTOC value has not been
183 * stored, use the current register value.
185 if (hw
->mac
.orig_link_settings_stored
)
186 autoc
= hw
->mac
.orig_autoc
;
188 autoc
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
190 switch (autoc
& IXGBE_AUTOC_LMS_MASK
) {
191 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN
:
192 *speed
= IXGBE_LINK_SPEED_1GB_FULL
;
196 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN
:
197 *speed
= IXGBE_LINK_SPEED_10GB_FULL
;
201 case IXGBE_AUTOC_LMS_1G_AN
:
202 *speed
= IXGBE_LINK_SPEED_1GB_FULL
;
206 case IXGBE_AUTOC_LMS_KX4_AN
:
207 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN
:
208 *speed
= IXGBE_LINK_SPEED_UNKNOWN
;
209 if (autoc
& IXGBE_AUTOC_KX4_SUPP
)
210 *speed
|= IXGBE_LINK_SPEED_10GB_FULL
;
211 if (autoc
& IXGBE_AUTOC_KX_SUPP
)
212 *speed
|= IXGBE_LINK_SPEED_1GB_FULL
;
224 * ixgbe_get_media_type_82598 - Determines media type
225 * @hw: pointer to hardware structure
227 * Returns the media type (fiber, copper, backplane)
229 static enum ixgbe_media_type
ixgbe_get_media_type_82598(struct ixgbe_hw
*hw
)
231 /* Detect if there is a copper PHY attached. */
232 switch (hw
->phy
.type
) {
233 case ixgbe_phy_cu_unknown
:
235 return ixgbe_media_type_copper
;
241 /* Media type for I82598 is based on device ID */
242 switch (hw
->device_id
) {
243 case IXGBE_DEV_ID_82598
:
244 case IXGBE_DEV_ID_82598_BX
:
245 /* Default device ID is mezzanine card KX/KX4 */
246 return ixgbe_media_type_backplane
;
248 case IXGBE_DEV_ID_82598AF_DUAL_PORT
:
249 case IXGBE_DEV_ID_82598AF_SINGLE_PORT
:
250 case IXGBE_DEV_ID_82598_DA_DUAL_PORT
:
251 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM
:
252 case IXGBE_DEV_ID_82598EB_XF_LR
:
253 case IXGBE_DEV_ID_82598EB_SFP_LOM
:
254 return ixgbe_media_type_fiber
;
256 case IXGBE_DEV_ID_82598EB_CX4
:
257 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT
:
258 return ixgbe_media_type_cx4
;
260 case IXGBE_DEV_ID_82598AT
:
261 case IXGBE_DEV_ID_82598AT2
:
262 return ixgbe_media_type_copper
;
265 return ixgbe_media_type_unknown
;
270 * ixgbe_fc_enable_82598 - Enable flow control
271 * @hw: pointer to hardware structure
273 * Enable flow control according to the current settings.
275 static int ixgbe_fc_enable_82598(struct ixgbe_hw
*hw
)
285 /* Validate the water mark configuration */
286 if (!hw
->fc
.pause_time
)
289 /* Low water mark of zero causes XOFF floods */
290 for (i
= 0; i
< MAX_TRAFFIC_CLASS
; i
++) {
291 if ((hw
->fc
.current_mode
& ixgbe_fc_tx_pause
) &&
292 hw
->fc
.high_water
[i
]) {
293 if (!hw
->fc
.low_water
[i
] ||
294 hw
->fc
.low_water
[i
] >= hw
->fc
.high_water
[i
]) {
295 hw_dbg(hw
, "Invalid water mark configuration\n");
302 * On 82598 having Rx FC on causes resets while doing 1G
303 * so if it's on turn it off once we know link_speed. For
304 * more details see 82598 Specification update.
306 hw
->mac
.ops
.check_link(hw
, &link_speed
, &link_up
, false);
307 if (link_up
&& link_speed
== IXGBE_LINK_SPEED_1GB_FULL
) {
308 switch (hw
->fc
.requested_mode
) {
310 hw
->fc
.requested_mode
= ixgbe_fc_tx_pause
;
312 case ixgbe_fc_rx_pause
:
313 hw
->fc
.requested_mode
= ixgbe_fc_none
;
321 /* Negotiate the fc mode to use */
322 hw
->mac
.ops
.fc_autoneg(hw
);
324 /* Disable any previous flow control settings */
325 fctrl_reg
= IXGBE_READ_REG(hw
, IXGBE_FCTRL
);
326 fctrl_reg
&= ~(IXGBE_FCTRL_RFCE
| IXGBE_FCTRL_RPFCE
);
328 rmcs_reg
= IXGBE_READ_REG(hw
, IXGBE_RMCS
);
329 rmcs_reg
&= ~(IXGBE_RMCS_TFCE_PRIORITY
| IXGBE_RMCS_TFCE_802_3X
);
332 * The possible values of fc.current_mode are:
333 * 0: Flow control is completely disabled
334 * 1: Rx flow control is enabled (we can receive pause frames,
335 * but not send pause frames).
336 * 2: Tx flow control is enabled (we can send pause frames but
337 * we do not support receiving pause frames).
338 * 3: Both Rx and Tx flow control (symmetric) are enabled.
341 switch (hw
->fc
.current_mode
) {
344 * Flow control is disabled by software override or autoneg.
345 * The code below will actually disable it in the HW.
348 case ixgbe_fc_rx_pause
:
350 * Rx Flow control is enabled and Tx Flow control is
351 * disabled by software override. Since there really
352 * isn't a way to advertise that we are capable of RX
353 * Pause ONLY, we will advertise that we support both
354 * symmetric and asymmetric Rx PAUSE. Later, we will
355 * disable the adapter's ability to send PAUSE frames.
357 fctrl_reg
|= IXGBE_FCTRL_RFCE
;
359 case ixgbe_fc_tx_pause
:
361 * Tx Flow control is enabled, and Rx Flow control is
362 * disabled by software override.
364 rmcs_reg
|= IXGBE_RMCS_TFCE_802_3X
;
367 /* Flow control (both Rx and Tx) is enabled by SW override. */
368 fctrl_reg
|= IXGBE_FCTRL_RFCE
;
369 rmcs_reg
|= IXGBE_RMCS_TFCE_802_3X
;
372 hw_dbg(hw
, "Flow control param set incorrectly\n");
376 /* Set 802.3x based flow control settings. */
377 fctrl_reg
|= IXGBE_FCTRL_DPF
;
378 IXGBE_WRITE_REG(hw
, IXGBE_FCTRL
, fctrl_reg
);
379 IXGBE_WRITE_REG(hw
, IXGBE_RMCS
, rmcs_reg
);
381 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
382 for (i
= 0; i
< MAX_TRAFFIC_CLASS
; i
++) {
383 if ((hw
->fc
.current_mode
& ixgbe_fc_tx_pause
) &&
384 hw
->fc
.high_water
[i
]) {
385 fcrtl
= (hw
->fc
.low_water
[i
] << 10) | IXGBE_FCRTL_XONE
;
386 fcrth
= (hw
->fc
.high_water
[i
] << 10) | IXGBE_FCRTH_FCEN
;
387 IXGBE_WRITE_REG(hw
, IXGBE_FCRTL(i
), fcrtl
);
388 IXGBE_WRITE_REG(hw
, IXGBE_FCRTH(i
), fcrth
);
390 IXGBE_WRITE_REG(hw
, IXGBE_FCRTL(i
), 0);
391 IXGBE_WRITE_REG(hw
, IXGBE_FCRTH(i
), 0);
396 /* Configure pause time (2 TCs per register) */
397 reg
= hw
->fc
.pause_time
* 0x00010001;
398 for (i
= 0; i
< (MAX_TRAFFIC_CLASS
/ 2); i
++)
399 IXGBE_WRITE_REG(hw
, IXGBE_FCTTV(i
), reg
);
401 /* Configure flow control refresh threshold value */
402 IXGBE_WRITE_REG(hw
, IXGBE_FCRTV
, hw
->fc
.pause_time
/ 2);
408 * ixgbe_start_mac_link_82598 - Configures MAC link settings
409 * @hw: pointer to hardware structure
410 * @autoneg_wait_to_complete: true when waiting for completion is needed
412 * Configures link settings based on values in the ixgbe_hw struct.
413 * Restarts the link. Performs autonegotiation if needed.
415 static int ixgbe_start_mac_link_82598(struct ixgbe_hw
*hw
,
416 bool autoneg_wait_to_complete
)
424 autoc_reg
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
425 autoc_reg
|= IXGBE_AUTOC_AN_RESTART
;
426 IXGBE_WRITE_REG(hw
, IXGBE_AUTOC
, autoc_reg
);
428 /* Only poll for autoneg to complete if specified to do so */
429 if (autoneg_wait_to_complete
) {
430 if ((autoc_reg
& IXGBE_AUTOC_LMS_MASK
) ==
431 IXGBE_AUTOC_LMS_KX4_AN
||
432 (autoc_reg
& IXGBE_AUTOC_LMS_MASK
) ==
433 IXGBE_AUTOC_LMS_KX4_AN_1G_AN
) {
434 links_reg
= 0; /* Just in case Autoneg time = 0 */
435 for (i
= 0; i
< IXGBE_AUTO_NEG_TIME
; i
++) {
436 links_reg
= IXGBE_READ_REG(hw
, IXGBE_LINKS
);
437 if (links_reg
& IXGBE_LINKS_KX_AN_COMP
)
441 if (!(links_reg
& IXGBE_LINKS_KX_AN_COMP
)) {
443 hw_dbg(hw
, "Autonegotiation did not complete.\n");
448 /* Add delay to filter out noises during initial link setup */
455 * ixgbe_validate_link_ready - Function looks for phy link
456 * @hw: pointer to hardware structure
458 * Function indicates success when phy link is available. If phy is not ready
459 * within 5 seconds of MAC indicating link, the function returns error.
461 static int ixgbe_validate_link_ready(struct ixgbe_hw
*hw
)
466 if (hw
->device_id
!= IXGBE_DEV_ID_82598AT2
)
470 timeout
< IXGBE_VALIDATE_LINK_READY_TIMEOUT
; timeout
++) {
471 hw
->phy
.ops
.read_reg(hw
, MDIO_STAT1
, MDIO_MMD_AN
, &an_reg
);
473 if ((an_reg
& MDIO_AN_STAT1_COMPLETE
) &&
474 (an_reg
& MDIO_STAT1_LSTATUS
))
480 if (timeout
== IXGBE_VALIDATE_LINK_READY_TIMEOUT
) {
481 hw_dbg(hw
, "Link was indicated but link is down\n");
489 * ixgbe_check_mac_link_82598 - Get link/speed status
490 * @hw: pointer to hardware structure
491 * @speed: pointer to link speed
492 * @link_up: true is link is up, false otherwise
493 * @link_up_wait_to_complete: bool used to wait for link up or not
495 * Reads the links register to determine if link is up and the current speed
497 static int ixgbe_check_mac_link_82598(struct ixgbe_hw
*hw
,
498 ixgbe_link_speed
*speed
, bool *link_up
,
499 bool link_up_wait_to_complete
)
503 u16 link_reg
, adapt_comp_reg
;
506 * SERDES PHY requires us to read link status from register 0xC79F.
507 * Bit 0 set indicates link is up/ready; clear indicates link down.
508 * 0xC00C is read to check that the XAUI lanes are active. Bit 0
509 * clear indicates active; set indicates inactive.
511 if (hw
->phy
.type
== ixgbe_phy_nl
) {
512 hw
->phy
.ops
.read_reg(hw
, 0xC79F, MDIO_MMD_PMAPMD
, &link_reg
);
513 hw
->phy
.ops
.read_reg(hw
, 0xC79F, MDIO_MMD_PMAPMD
, &link_reg
);
514 hw
->phy
.ops
.read_reg(hw
, 0xC00C, MDIO_MMD_PMAPMD
,
516 if (link_up_wait_to_complete
) {
517 for (i
= 0; i
< IXGBE_LINK_UP_TIME
; i
++) {
518 if ((link_reg
& 1) &&
519 ((adapt_comp_reg
& 1) == 0)) {
526 hw
->phy
.ops
.read_reg(hw
, 0xC79F,
529 hw
->phy
.ops
.read_reg(hw
, 0xC00C,
534 if ((link_reg
& 1) && ((adapt_comp_reg
& 1) == 0))
544 links_reg
= IXGBE_READ_REG(hw
, IXGBE_LINKS
);
545 if (link_up_wait_to_complete
) {
546 for (i
= 0; i
< IXGBE_LINK_UP_TIME
; i
++) {
547 if (links_reg
& IXGBE_LINKS_UP
) {
554 links_reg
= IXGBE_READ_REG(hw
, IXGBE_LINKS
);
557 if (links_reg
& IXGBE_LINKS_UP
)
563 if (links_reg
& IXGBE_LINKS_SPEED
)
564 *speed
= IXGBE_LINK_SPEED_10GB_FULL
;
566 *speed
= IXGBE_LINK_SPEED_1GB_FULL
;
568 if ((hw
->device_id
== IXGBE_DEV_ID_82598AT2
) && *link_up
&&
569 (ixgbe_validate_link_ready(hw
) != 0))
576 * ixgbe_setup_mac_link_82598 - Set MAC link speed
577 * @hw: pointer to hardware structure
578 * @speed: new link speed
579 * @autoneg_wait_to_complete: true when waiting for completion is needed
581 * Set the link speed in the AUTOC register and restarts link.
583 static int ixgbe_setup_mac_link_82598(struct ixgbe_hw
*hw
,
584 ixgbe_link_speed speed
,
585 bool autoneg_wait_to_complete
)
587 bool autoneg
= false;
588 ixgbe_link_speed link_capabilities
= IXGBE_LINK_SPEED_UNKNOWN
;
589 u32 curr_autoc
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
590 u32 autoc
= curr_autoc
;
591 u32 link_mode
= autoc
& IXGBE_AUTOC_LMS_MASK
;
593 /* Check to see if speed passed in is supported. */
594 ixgbe_get_link_capabilities_82598(hw
, &link_capabilities
, &autoneg
);
595 speed
&= link_capabilities
;
597 if (speed
== IXGBE_LINK_SPEED_UNKNOWN
)
600 /* Set KX4/KX support according to speed requested */
601 else if (link_mode
== IXGBE_AUTOC_LMS_KX4_AN
||
602 link_mode
== IXGBE_AUTOC_LMS_KX4_AN_1G_AN
) {
603 autoc
&= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK
;
604 if (speed
& IXGBE_LINK_SPEED_10GB_FULL
)
605 autoc
|= IXGBE_AUTOC_KX4_SUPP
;
606 if (speed
& IXGBE_LINK_SPEED_1GB_FULL
)
607 autoc
|= IXGBE_AUTOC_KX_SUPP
;
608 if (autoc
!= curr_autoc
)
609 IXGBE_WRITE_REG(hw
, IXGBE_AUTOC
, autoc
);
612 /* Setup and restart the link based on the new values in
613 * ixgbe_hw This will write the AUTOC register based on the new
616 return ixgbe_start_mac_link_82598(hw
, autoneg_wait_to_complete
);
621 * ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
622 * @hw: pointer to hardware structure
623 * @speed: new link speed
624 * @autoneg_wait_to_complete: true if waiting is needed to complete
626 * Sets the link speed in the AUTOC register in the MAC and restarts link.
628 static int ixgbe_setup_copper_link_82598(struct ixgbe_hw
*hw
,
629 ixgbe_link_speed speed
,
630 bool autoneg_wait_to_complete
)
634 /* Setup the PHY according to input speed */
635 status
= hw
->phy
.ops
.setup_link_speed(hw
, speed
,
636 autoneg_wait_to_complete
);
638 ixgbe_start_mac_link_82598(hw
, autoneg_wait_to_complete
);
644 * ixgbe_reset_hw_82598 - Performs hardware reset
645 * @hw: pointer to hardware structure
647 * Resets the hardware by resetting the transmit and receive units, masks and
648 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
651 static int ixgbe_reset_hw_82598(struct ixgbe_hw
*hw
)
661 /* Call adapter stop to disable tx/rx and clear interrupts */
662 status
= hw
->mac
.ops
.stop_adapter(hw
);
667 * Power up the Atlas Tx lanes if they are currently powered down.
668 * Atlas Tx lanes are powered down for MAC loopback tests, but
669 * they are not automatically restored on reset.
671 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_LPBK
, &analog_val
);
672 if (analog_val
& IXGBE_ATLAS_PDN_TX_REG_EN
) {
673 /* Enable Tx Atlas so packets can be transmitted again */
674 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_LPBK
,
676 analog_val
&= ~IXGBE_ATLAS_PDN_TX_REG_EN
;
677 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_LPBK
,
680 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_10G
,
682 analog_val
&= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL
;
683 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_10G
,
686 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_1G
,
688 analog_val
&= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL
;
689 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_1G
,
692 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_AN
,
694 analog_val
&= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL
;
695 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_AN
,
700 if (hw
->phy
.reset_disable
== false) {
701 /* PHY ops must be identified and initialized prior to reset */
703 /* Init PHY and function pointers, perform SFP setup */
704 phy_status
= hw
->phy
.ops
.init(hw
);
705 if (phy_status
== -EOPNOTSUPP
)
707 if (phy_status
== -ENOENT
)
710 hw
->phy
.ops
.reset(hw
);
715 * Issue global reset to the MAC. This needs to be a SW reset.
716 * If link reset is used, it might reset the MAC when mng is using it
718 ctrl
= IXGBE_READ_REG(hw
, IXGBE_CTRL
) | IXGBE_CTRL_RST
;
719 IXGBE_WRITE_REG(hw
, IXGBE_CTRL
, ctrl
);
720 IXGBE_WRITE_FLUSH(hw
);
721 usleep_range(1000, 1200);
723 /* Poll for reset bit to self-clear indicating reset is complete */
724 for (i
= 0; i
< 10; i
++) {
725 ctrl
= IXGBE_READ_REG(hw
, IXGBE_CTRL
);
726 if (!(ctrl
& IXGBE_CTRL_RST
))
730 if (ctrl
& IXGBE_CTRL_RST
) {
732 hw_dbg(hw
, "Reset polling failed to complete.\n");
738 * Double resets are required for recovery from certain error
739 * conditions. Between resets, it is necessary to stall to allow time
740 * for any pending HW events to complete.
742 if (hw
->mac
.flags
& IXGBE_FLAGS_DOUBLE_RESET_REQUIRED
) {
743 hw
->mac
.flags
&= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED
;
747 gheccr
= IXGBE_READ_REG(hw
, IXGBE_GHECCR
);
748 gheccr
&= ~(BIT(21) | BIT(18) | BIT(9) | BIT(6));
749 IXGBE_WRITE_REG(hw
, IXGBE_GHECCR
, gheccr
);
752 * Store the original AUTOC value if it has not been
753 * stored off yet. Otherwise restore the stored original
754 * AUTOC value since the reset operation sets back to deaults.
756 autoc
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
757 if (hw
->mac
.orig_link_settings_stored
== false) {
758 hw
->mac
.orig_autoc
= autoc
;
759 hw
->mac
.orig_link_settings_stored
= true;
760 } else if (autoc
!= hw
->mac
.orig_autoc
) {
761 IXGBE_WRITE_REG(hw
, IXGBE_AUTOC
, hw
->mac
.orig_autoc
);
764 /* Store the permanent mac address */
765 hw
->mac
.ops
.get_mac_addr(hw
, hw
->mac
.perm_addr
);
768 * Store MAC address from RAR0, clear receive address registers, and
769 * clear the multicast table
771 hw
->mac
.ops
.init_rx_addrs(hw
);
780 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
781 * @hw: pointer to hardware struct
782 * @rar: receive address register index to associate with a VMDq index
783 * @vmdq: VMDq set index
785 static int ixgbe_set_vmdq_82598(struct ixgbe_hw
*hw
, u32 rar
, u32 vmdq
)
788 u32 rar_entries
= hw
->mac
.num_rar_entries
;
790 /* Make sure we are using a valid rar index range */
791 if (rar
>= rar_entries
) {
792 hw_dbg(hw
, "RAR index %d is out of range.\n", rar
);
796 rar_high
= IXGBE_READ_REG(hw
, IXGBE_RAH(rar
));
797 rar_high
&= ~IXGBE_RAH_VIND_MASK
;
798 rar_high
|= FIELD_PREP(IXGBE_RAH_VIND_MASK
, vmdq
);
799 IXGBE_WRITE_REG(hw
, IXGBE_RAH(rar
), rar_high
);
804 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
805 * @hw: pointer to hardware struct
806 * @rar: receive address register index to associate with a VMDq index
807 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
809 static int ixgbe_clear_vmdq_82598(struct ixgbe_hw
*hw
, u32 rar
, u32 vmdq
)
812 u32 rar_entries
= hw
->mac
.num_rar_entries
;
815 /* Make sure we are using a valid rar index range */
816 if (rar
>= rar_entries
) {
817 hw_dbg(hw
, "RAR index %d is out of range.\n", rar
);
821 rar_high
= IXGBE_READ_REG(hw
, IXGBE_RAH(rar
));
822 if (rar_high
& IXGBE_RAH_VIND_MASK
) {
823 rar_high
&= ~IXGBE_RAH_VIND_MASK
;
824 IXGBE_WRITE_REG(hw
, IXGBE_RAH(rar
), rar_high
);
831 * ixgbe_set_vfta_82598 - Set VLAN filter table
832 * @hw: pointer to hardware structure
833 * @vlan: VLAN id to write to VLAN filter
834 * @vind: VMDq output index that maps queue to VLAN id in VFTA
835 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
836 * @vlvf_bypass: boolean flag - unused
838 * Turn on/off specified VLAN in the VLAN filter table.
840 static int ixgbe_set_vfta_82598(struct ixgbe_hw
*hw
, u32 vlan
, u32 vind
,
841 bool vlan_on
, bool vlvf_bypass
)
851 /* Determine 32-bit word position in array */
852 regindex
= (vlan
>> 5) & 0x7F; /* upper seven bits */
854 /* Determine the location of the (VMD) queue index */
855 vftabyte
= ((vlan
>> 3) & 0x03); /* bits (4:3) indicating byte array */
856 bitindex
= (vlan
& 0x7) << 2; /* lower 3 bits indicate nibble */
858 /* Set the nibble for VMD queue index */
859 bits
= IXGBE_READ_REG(hw
, IXGBE_VFTAVIND(vftabyte
, regindex
));
860 bits
&= (~(0x0F << bitindex
));
861 bits
|= (vind
<< bitindex
);
862 IXGBE_WRITE_REG(hw
, IXGBE_VFTAVIND(vftabyte
, regindex
), bits
);
864 /* Determine the location of the bit for this VLAN id */
865 bitindex
= vlan
& 0x1F; /* lower five bits */
867 bits
= IXGBE_READ_REG(hw
, IXGBE_VFTA(regindex
));
869 /* Turn on this VLAN id */
870 bits
|= BIT(bitindex
);
872 /* Turn off this VLAN id */
873 bits
&= ~BIT(bitindex
);
874 IXGBE_WRITE_REG(hw
, IXGBE_VFTA(regindex
), bits
);
880 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
881 * @hw: pointer to hardware structure
883 * Clears the VLAN filter table, and the VMDq index associated with the filter
885 static int ixgbe_clear_vfta_82598(struct ixgbe_hw
*hw
)
890 for (offset
= 0; offset
< hw
->mac
.vft_size
; offset
++)
891 IXGBE_WRITE_REG(hw
, IXGBE_VFTA(offset
), 0);
893 for (vlanbyte
= 0; vlanbyte
< 4; vlanbyte
++)
894 for (offset
= 0; offset
< hw
->mac
.vft_size
; offset
++)
895 IXGBE_WRITE_REG(hw
, IXGBE_VFTAVIND(vlanbyte
, offset
),
902 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
903 * @hw: pointer to hardware structure
904 * @reg: analog register to read
907 * Performs read operation to Atlas analog register specified.
909 static int ixgbe_read_analog_reg8_82598(struct ixgbe_hw
*hw
, u32 reg
, u8
*val
)
913 IXGBE_WRITE_REG(hw
, IXGBE_ATLASCTL
,
914 IXGBE_ATLASCTL_WRITE_CMD
| (reg
<< 8));
915 IXGBE_WRITE_FLUSH(hw
);
917 atlas_ctl
= IXGBE_READ_REG(hw
, IXGBE_ATLASCTL
);
918 *val
= (u8
)atlas_ctl
;
924 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
925 * @hw: pointer to hardware structure
926 * @reg: atlas register to write
927 * @val: value to write
929 * Performs write operation to Atlas analog register specified.
931 static int ixgbe_write_analog_reg8_82598(struct ixgbe_hw
*hw
, u32 reg
, u8 val
)
935 atlas_ctl
= (reg
<< 8) | val
;
936 IXGBE_WRITE_REG(hw
, IXGBE_ATLASCTL
, atlas_ctl
);
937 IXGBE_WRITE_FLUSH(hw
);
944 * ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
945 * @hw: pointer to hardware structure
946 * @dev_addr: address to read from
947 * @byte_offset: byte offset to read from dev_addr
948 * @eeprom_data: value read
950 * Performs 8 byte read operation to SFP module's data over I2C interface.
952 static int ixgbe_read_i2c_phy_82598(struct ixgbe_hw
*hw
, u8 dev_addr
,
953 u8 byte_offset
, u8
*eeprom_data
)
962 if (IXGBE_READ_REG(hw
, IXGBE_STATUS
) & IXGBE_STATUS_LAN_ID_1
)
963 gssr
= IXGBE_GSSR_PHY1_SM
;
965 gssr
= IXGBE_GSSR_PHY0_SM
;
967 if (hw
->mac
.ops
.acquire_swfw_sync(hw
, gssr
) != 0)
970 if (hw
->phy
.type
== ixgbe_phy_nl
) {
972 * phy SDA/SCL registers are at addresses 0xC30A to
973 * 0xC30D. These registers are used to talk to the SFP+
974 * module's EEPROM through the SDA/SCL (I2C) interface.
976 sfp_addr
= (dev_addr
<< 8) + byte_offset
;
977 sfp_addr
= (sfp_addr
| IXGBE_I2C_EEPROM_READ_MASK
);
978 hw
->phy
.ops
.write_reg_mdi(hw
,
979 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR
,
984 for (i
= 0; i
< 100; i
++) {
985 hw
->phy
.ops
.read_reg_mdi(hw
,
986 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT
,
989 sfp_stat
= sfp_stat
& IXGBE_I2C_EEPROM_STATUS_MASK
;
990 if (sfp_stat
!= IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS
)
992 usleep_range(10000, 20000);
995 if (sfp_stat
!= IXGBE_I2C_EEPROM_STATUS_PASS
) {
996 hw_dbg(hw
, "EEPROM read did not pass.\n");
1002 hw
->phy
.ops
.read_reg_mdi(hw
, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA
,
1003 MDIO_MMD_PMAPMD
, &sfp_data
);
1005 *eeprom_data
= (u8
)(sfp_data
>> 8);
1011 hw
->mac
.ops
.release_swfw_sync(hw
, gssr
);
1016 * ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1017 * @hw: pointer to hardware structure
1018 * @byte_offset: EEPROM byte offset to read
1019 * @eeprom_data: value read
1021 * Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1023 static int ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw
*hw
, u8 byte_offset
,
1026 return ixgbe_read_i2c_phy_82598(hw
, IXGBE_I2C_EEPROM_DEV_ADDR
,
1027 byte_offset
, eeprom_data
);
1031 * ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1032 * @hw: pointer to hardware structure
1033 * @byte_offset: byte offset at address 0xA2
1034 * @sff8472_data: value read
1036 * Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1038 static int ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw
*hw
, u8 byte_offset
,
1041 return ixgbe_read_i2c_phy_82598(hw
, IXGBE_I2C_EEPROM_DEV_ADDR2
,
1042 byte_offset
, sff8472_data
);
1046 * ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1048 * @hw: pointer to the HW structure
1050 * Calls common function and corrects issue with some single port devices
1051 * that enable LAN1 but not LAN0.
1053 static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw
*hw
)
1055 struct ixgbe_bus_info
*bus
= &hw
->bus
;
1059 ixgbe_set_lan_id_multi_port_pcie(hw
);
1061 /* check if LAN0 is disabled */
1062 hw
->eeprom
.ops
.read(hw
, IXGBE_PCIE_GENERAL_PTR
, &pci_gen
);
1063 if ((pci_gen
!= 0) && (pci_gen
!= 0xFFFF)) {
1065 hw
->eeprom
.ops
.read(hw
, pci_gen
+ IXGBE_PCIE_CTRL2
, &pci_ctrl2
);
1067 /* if LAN0 is completely disabled force function to 0 */
1068 if ((pci_ctrl2
& IXGBE_PCIE_CTRL2_LAN_DISABLE
) &&
1069 !(pci_ctrl2
& IXGBE_PCIE_CTRL2_DISABLE_SELECT
) &&
1070 !(pci_ctrl2
& IXGBE_PCIE_CTRL2_DUMMY_ENABLE
)) {
1078 * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1079 * @hw: pointer to hardware structure
1080 * @num_pb: number of packet buffers to allocate
1081 * @headroom: reserve n KB of headroom
1082 * @strategy: packet buffer allocation strategy
1084 static void ixgbe_set_rxpba_82598(struct ixgbe_hw
*hw
, int num_pb
,
1085 u32 headroom
, int strategy
)
1087 u32 rxpktsize
= IXGBE_RXPBSIZE_64KB
;
1093 /* Setup Rx packet buffer sizes */
1095 case PBA_STRATEGY_WEIGHTED
:
1096 /* Setup the first four at 80KB */
1097 rxpktsize
= IXGBE_RXPBSIZE_80KB
;
1099 IXGBE_WRITE_REG(hw
, IXGBE_RXPBSIZE(i
), rxpktsize
);
1100 /* Setup the last four at 48KB...don't re-init i */
1101 rxpktsize
= IXGBE_RXPBSIZE_48KB
;
1103 case PBA_STRATEGY_EQUAL
:
1105 /* Divide the remaining Rx packet buffer evenly among the TCs */
1106 for (; i
< IXGBE_MAX_PACKET_BUFFERS
; i
++)
1107 IXGBE_WRITE_REG(hw
, IXGBE_RXPBSIZE(i
), rxpktsize
);
1111 /* Setup Tx packet buffer sizes */
1112 for (i
= 0; i
< IXGBE_MAX_PACKET_BUFFERS
; i
++)
1113 IXGBE_WRITE_REG(hw
, IXGBE_TXPBSIZE(i
), IXGBE_TXPBSIZE_40KB
);
1116 static const struct ixgbe_mac_operations mac_ops_82598
= {
1117 .init_hw
= &ixgbe_init_hw_generic
,
1118 .reset_hw
= &ixgbe_reset_hw_82598
,
1119 .start_hw
= &ixgbe_start_hw_82598
,
1120 .clear_hw_cntrs
= &ixgbe_clear_hw_cntrs_generic
,
1121 .get_media_type
= &ixgbe_get_media_type_82598
,
1122 .enable_rx_dma
= &ixgbe_enable_rx_dma_generic
,
1123 .get_mac_addr
= &ixgbe_get_mac_addr_generic
,
1124 .stop_adapter
= &ixgbe_stop_adapter_generic
,
1125 .get_bus_info
= &ixgbe_get_bus_info_generic
,
1126 .set_lan_id
= &ixgbe_set_lan_id_multi_port_pcie_82598
,
1127 .read_analog_reg8
= &ixgbe_read_analog_reg8_82598
,
1128 .write_analog_reg8
= &ixgbe_write_analog_reg8_82598
,
1129 .setup_link
= &ixgbe_setup_mac_link_82598
,
1130 .set_rxpba
= &ixgbe_set_rxpba_82598
,
1131 .check_link
= &ixgbe_check_mac_link_82598
,
1132 .get_link_capabilities
= &ixgbe_get_link_capabilities_82598
,
1133 .led_on
= &ixgbe_led_on_generic
,
1134 .led_off
= &ixgbe_led_off_generic
,
1135 .init_led_link_act
= ixgbe_init_led_link_act_generic
,
1136 .blink_led_start
= &ixgbe_blink_led_start_generic
,
1137 .blink_led_stop
= &ixgbe_blink_led_stop_generic
,
1138 .set_rar
= &ixgbe_set_rar_generic
,
1139 .clear_rar
= &ixgbe_clear_rar_generic
,
1140 .set_vmdq
= &ixgbe_set_vmdq_82598
,
1141 .clear_vmdq
= &ixgbe_clear_vmdq_82598
,
1142 .init_rx_addrs
= &ixgbe_init_rx_addrs_generic
,
1143 .update_mc_addr_list
= &ixgbe_update_mc_addr_list_generic
,
1144 .enable_mc
= &ixgbe_enable_mc_generic
,
1145 .disable_mc
= &ixgbe_disable_mc_generic
,
1146 .clear_vfta
= &ixgbe_clear_vfta_82598
,
1147 .set_vfta
= &ixgbe_set_vfta_82598
,
1148 .fc_enable
= &ixgbe_fc_enable_82598
,
1149 .setup_fc
= ixgbe_setup_fc_generic
,
1150 .fc_autoneg
= ixgbe_fc_autoneg
,
1151 .set_fw_drv_ver
= NULL
,
1152 .acquire_swfw_sync
= &ixgbe_acquire_swfw_sync
,
1153 .release_swfw_sync
= &ixgbe_release_swfw_sync
,
1154 .init_swfw_sync
= NULL
,
1155 .get_thermal_sensor_data
= NULL
,
1156 .init_thermal_sensor_thresh
= NULL
,
1157 .prot_autoc_read
= &prot_autoc_read_generic
,
1158 .prot_autoc_write
= &prot_autoc_write_generic
,
1159 .enable_rx
= &ixgbe_enable_rx_generic
,
1160 .disable_rx
= &ixgbe_disable_rx_generic
,
1163 static const struct ixgbe_eeprom_operations eeprom_ops_82598
= {
1164 .init_params
= &ixgbe_init_eeprom_params_generic
,
1165 .read
= &ixgbe_read_eerd_generic
,
1166 .write
= &ixgbe_write_eeprom_generic
,
1167 .write_buffer
= &ixgbe_write_eeprom_buffer_bit_bang_generic
,
1168 .read_buffer
= &ixgbe_read_eerd_buffer_generic
,
1169 .calc_checksum
= &ixgbe_calc_eeprom_checksum_generic
,
1170 .validate_checksum
= &ixgbe_validate_eeprom_checksum_generic
,
1171 .update_checksum
= &ixgbe_update_eeprom_checksum_generic
,
1174 static const struct ixgbe_phy_operations phy_ops_82598
= {
1175 .identify
= &ixgbe_identify_phy_generic
,
1176 .identify_sfp
= &ixgbe_identify_module_generic
,
1177 .init
= &ixgbe_init_phy_ops_82598
,
1178 .reset
= &ixgbe_reset_phy_generic
,
1179 .read_reg
= &ixgbe_read_phy_reg_generic
,
1180 .write_reg
= &ixgbe_write_phy_reg_generic
,
1181 .read_reg_mdi
= &ixgbe_read_phy_reg_mdi
,
1182 .write_reg_mdi
= &ixgbe_write_phy_reg_mdi
,
1183 .setup_link
= &ixgbe_setup_phy_link_generic
,
1184 .setup_link_speed
= &ixgbe_setup_phy_link_speed_generic
,
1185 .read_i2c_sff8472
= &ixgbe_read_i2c_sff8472_82598
,
1186 .read_i2c_eeprom
= &ixgbe_read_i2c_eeprom_82598
,
1187 .check_overtemp
= &ixgbe_tn_check_overtemp
,
1190 const struct ixgbe_info ixgbe_82598_info
= {
1191 .mac
= ixgbe_mac_82598EB
,
1192 .get_invariants
= &ixgbe_get_invariants_82598
,
1193 .mac_ops
= &mac_ops_82598
,
1194 .eeprom_ops
= &eeprom_ops_82598
,
1195 .phy_ops
= &phy_ops_82598
,
1196 .mvals
= ixgbe_mvals_8259X
,