1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2016 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
29 #include <linux/pci.h>
30 #include <linux/delay.h>
31 #include <linux/sched.h>
34 #include "ixgbe_phy.h"
36 #define IXGBE_82598_MAX_TX_QUEUES 32
37 #define IXGBE_82598_MAX_RX_QUEUES 64
38 #define IXGBE_82598_RAR_ENTRIES 16
39 #define IXGBE_82598_MC_TBL_SIZE 128
40 #define IXGBE_82598_VFT_TBL_SIZE 128
41 #define IXGBE_82598_RX_PB_SIZE 512
43 static s32
ixgbe_setup_copper_link_82598(struct ixgbe_hw
*hw
,
44 ixgbe_link_speed speed
,
45 bool autoneg_wait_to_complete
);
46 static s32
ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw
*hw
, u8 byte_offset
,
50 * ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
51 * @hw: pointer to the HW structure
53 * The defaults for 82598 should be in the range of 50us to 50ms,
54 * however the hardware default for these parts is 500us to 1ms which is less
55 * than the 10ms recommended by the pci-e spec. To address this we need to
56 * increase the value to either 10ms to 250ms for capability version 1 config,
57 * or 16ms to 55ms for version 2.
59 static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw
*hw
)
61 u32 gcr
= IXGBE_READ_REG(hw
, IXGBE_GCR
);
64 if (ixgbe_removed(hw
->hw_addr
))
67 /* only take action if timeout value is defaulted to 0 */
68 if (gcr
& IXGBE_GCR_CMPL_TMOUT_MASK
)
72 * if capababilities version is type 1 we can write the
73 * timeout of 10ms to 250ms through the GCR register
75 if (!(gcr
& IXGBE_GCR_CAP_VER2
)) {
76 gcr
|= IXGBE_GCR_CMPL_TMOUT_10ms
;
81 * for version 2 capabilities we need to write the config space
82 * directly in order to set the completion timeout value for
85 pcie_devctl2
= ixgbe_read_pci_cfg_word(hw
, IXGBE_PCI_DEVICE_CONTROL2
);
86 pcie_devctl2
|= IXGBE_PCI_DEVICE_CONTROL2_16ms
;
87 ixgbe_write_pci_cfg_word(hw
, IXGBE_PCI_DEVICE_CONTROL2
, pcie_devctl2
);
89 /* disable completion timeout resend */
90 gcr
&= ~IXGBE_GCR_CMPL_TMOUT_RESEND
;
91 IXGBE_WRITE_REG(hw
, IXGBE_GCR
, gcr
);
94 static s32
ixgbe_get_invariants_82598(struct ixgbe_hw
*hw
)
96 struct ixgbe_mac_info
*mac
= &hw
->mac
;
98 /* Call PHY identify routine to get the phy type */
99 ixgbe_identify_phy_generic(hw
);
101 mac
->mcft_size
= IXGBE_82598_MC_TBL_SIZE
;
102 mac
->vft_size
= IXGBE_82598_VFT_TBL_SIZE
;
103 mac
->num_rar_entries
= IXGBE_82598_RAR_ENTRIES
;
104 mac
->rx_pb_size
= IXGBE_82598_RX_PB_SIZE
;
105 mac
->max_rx_queues
= IXGBE_82598_MAX_RX_QUEUES
;
106 mac
->max_tx_queues
= IXGBE_82598_MAX_TX_QUEUES
;
107 mac
->max_msix_vectors
= ixgbe_get_pcie_msix_count_generic(hw
);
113 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
114 * @hw: pointer to hardware structure
116 * Initialize any function pointers that were not able to be
117 * set during get_invariants because the PHY/SFP type was
118 * not known. Perform the SFP init if necessary.
121 static s32
ixgbe_init_phy_ops_82598(struct ixgbe_hw
*hw
)
123 struct ixgbe_mac_info
*mac
= &hw
->mac
;
124 struct ixgbe_phy_info
*phy
= &hw
->phy
;
126 u16 list_offset
, data_offset
;
128 /* Identify the PHY */
129 phy
->ops
.identify(hw
);
131 /* Overwrite the link function pointers if copper PHY */
132 if (mac
->ops
.get_media_type(hw
) == ixgbe_media_type_copper
) {
133 mac
->ops
.setup_link
= &ixgbe_setup_copper_link_82598
;
134 mac
->ops
.get_link_capabilities
=
135 &ixgbe_get_copper_link_capabilities_generic
;
138 switch (hw
->phy
.type
) {
140 phy
->ops
.setup_link
= &ixgbe_setup_phy_link_tnx
;
141 phy
->ops
.check_link
= &ixgbe_check_phy_link_tnx
;
144 phy
->ops
.reset
= &ixgbe_reset_phy_nl
;
146 /* Call SFP+ identify routine to get the SFP+ module type */
147 ret_val
= phy
->ops
.identify_sfp(hw
);
150 if (hw
->phy
.sfp_type
== ixgbe_sfp_type_unknown
)
151 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
153 /* Check to see if SFP+ module is supported */
154 ret_val
= ixgbe_get_sfp_init_sequence_offsets(hw
,
158 return IXGBE_ERR_SFP_NOT_SUPPORTED
;
168 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
169 * @hw: pointer to hardware structure
171 * Starts the hardware using the generic start_hw function.
172 * Disables relaxed ordering for archs other than SPARC
173 * Then set pcie completion timeout
176 static s32
ixgbe_start_hw_82598(struct ixgbe_hw
*hw
)
180 ret_val
= ixgbe_start_hw_generic(hw
);
184 /* set the completion timeout for interface */
185 ixgbe_set_pcie_completion_timeout(hw
);
191 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
192 * @hw: pointer to hardware structure
193 * @speed: pointer to link speed
194 * @autoneg: boolean auto-negotiation value
196 * Determines the link capabilities by reading the AUTOC register.
198 static s32
ixgbe_get_link_capabilities_82598(struct ixgbe_hw
*hw
,
199 ixgbe_link_speed
*speed
,
205 * Determine link capabilities based on the stored value of AUTOC,
206 * which represents EEPROM defaults. If AUTOC value has not been
207 * stored, use the current register value.
209 if (hw
->mac
.orig_link_settings_stored
)
210 autoc
= hw
->mac
.orig_autoc
;
212 autoc
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
214 switch (autoc
& IXGBE_AUTOC_LMS_MASK
) {
215 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN
:
216 *speed
= IXGBE_LINK_SPEED_1GB_FULL
;
220 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN
:
221 *speed
= IXGBE_LINK_SPEED_10GB_FULL
;
225 case IXGBE_AUTOC_LMS_1G_AN
:
226 *speed
= IXGBE_LINK_SPEED_1GB_FULL
;
230 case IXGBE_AUTOC_LMS_KX4_AN
:
231 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN
:
232 *speed
= IXGBE_LINK_SPEED_UNKNOWN
;
233 if (autoc
& IXGBE_AUTOC_KX4_SUPP
)
234 *speed
|= IXGBE_LINK_SPEED_10GB_FULL
;
235 if (autoc
& IXGBE_AUTOC_KX_SUPP
)
236 *speed
|= IXGBE_LINK_SPEED_1GB_FULL
;
241 return IXGBE_ERR_LINK_SETUP
;
248 * ixgbe_get_media_type_82598 - Determines media type
249 * @hw: pointer to hardware structure
251 * Returns the media type (fiber, copper, backplane)
253 static enum ixgbe_media_type
ixgbe_get_media_type_82598(struct ixgbe_hw
*hw
)
255 /* Detect if there is a copper PHY attached. */
256 switch (hw
->phy
.type
) {
257 case ixgbe_phy_cu_unknown
:
259 return ixgbe_media_type_copper
;
265 /* Media type for I82598 is based on device ID */
266 switch (hw
->device_id
) {
267 case IXGBE_DEV_ID_82598
:
268 case IXGBE_DEV_ID_82598_BX
:
269 /* Default device ID is mezzanine card KX/KX4 */
270 return ixgbe_media_type_backplane
;
272 case IXGBE_DEV_ID_82598AF_DUAL_PORT
:
273 case IXGBE_DEV_ID_82598AF_SINGLE_PORT
:
274 case IXGBE_DEV_ID_82598_DA_DUAL_PORT
:
275 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM
:
276 case IXGBE_DEV_ID_82598EB_XF_LR
:
277 case IXGBE_DEV_ID_82598EB_SFP_LOM
:
278 return ixgbe_media_type_fiber
;
280 case IXGBE_DEV_ID_82598EB_CX4
:
281 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT
:
282 return ixgbe_media_type_cx4
;
284 case IXGBE_DEV_ID_82598AT
:
285 case IXGBE_DEV_ID_82598AT2
:
286 return ixgbe_media_type_copper
;
289 return ixgbe_media_type_unknown
;
294 * ixgbe_fc_enable_82598 - Enable flow control
295 * @hw: pointer to hardware structure
297 * Enable flow control according to the current settings.
299 static s32
ixgbe_fc_enable_82598(struct ixgbe_hw
*hw
)
309 /* Validate the water mark configuration */
310 if (!hw
->fc
.pause_time
)
311 return IXGBE_ERR_INVALID_LINK_SETTINGS
;
313 /* Low water mark of zero causes XOFF floods */
314 for (i
= 0; i
< MAX_TRAFFIC_CLASS
; i
++) {
315 if ((hw
->fc
.current_mode
& ixgbe_fc_tx_pause
) &&
316 hw
->fc
.high_water
[i
]) {
317 if (!hw
->fc
.low_water
[i
] ||
318 hw
->fc
.low_water
[i
] >= hw
->fc
.high_water
[i
]) {
319 hw_dbg(hw
, "Invalid water mark configuration\n");
320 return IXGBE_ERR_INVALID_LINK_SETTINGS
;
326 * On 82598 having Rx FC on causes resets while doing 1G
327 * so if it's on turn it off once we know link_speed. For
328 * more details see 82598 Specification update.
330 hw
->mac
.ops
.check_link(hw
, &link_speed
, &link_up
, false);
331 if (link_up
&& link_speed
== IXGBE_LINK_SPEED_1GB_FULL
) {
332 switch (hw
->fc
.requested_mode
) {
334 hw
->fc
.requested_mode
= ixgbe_fc_tx_pause
;
336 case ixgbe_fc_rx_pause
:
337 hw
->fc
.requested_mode
= ixgbe_fc_none
;
345 /* Negotiate the fc mode to use */
346 hw
->mac
.ops
.fc_autoneg(hw
);
348 /* Disable any previous flow control settings */
349 fctrl_reg
= IXGBE_READ_REG(hw
, IXGBE_FCTRL
);
350 fctrl_reg
&= ~(IXGBE_FCTRL_RFCE
| IXGBE_FCTRL_RPFCE
);
352 rmcs_reg
= IXGBE_READ_REG(hw
, IXGBE_RMCS
);
353 rmcs_reg
&= ~(IXGBE_RMCS_TFCE_PRIORITY
| IXGBE_RMCS_TFCE_802_3X
);
356 * The possible values of fc.current_mode are:
357 * 0: Flow control is completely disabled
358 * 1: Rx flow control is enabled (we can receive pause frames,
359 * but not send pause frames).
360 * 2: Tx flow control is enabled (we can send pause frames but
361 * we do not support receiving pause frames).
362 * 3: Both Rx and Tx flow control (symmetric) are enabled.
365 switch (hw
->fc
.current_mode
) {
368 * Flow control is disabled by software override or autoneg.
369 * The code below will actually disable it in the HW.
372 case ixgbe_fc_rx_pause
:
374 * Rx Flow control is enabled and Tx Flow control is
375 * disabled by software override. Since there really
376 * isn't a way to advertise that we are capable of RX
377 * Pause ONLY, we will advertise that we support both
378 * symmetric and asymmetric Rx PAUSE. Later, we will
379 * disable the adapter's ability to send PAUSE frames.
381 fctrl_reg
|= IXGBE_FCTRL_RFCE
;
383 case ixgbe_fc_tx_pause
:
385 * Tx Flow control is enabled, and Rx Flow control is
386 * disabled by software override.
388 rmcs_reg
|= IXGBE_RMCS_TFCE_802_3X
;
391 /* Flow control (both Rx and Tx) is enabled by SW override. */
392 fctrl_reg
|= IXGBE_FCTRL_RFCE
;
393 rmcs_reg
|= IXGBE_RMCS_TFCE_802_3X
;
396 hw_dbg(hw
, "Flow control param set incorrectly\n");
397 return IXGBE_ERR_CONFIG
;
400 /* Set 802.3x based flow control settings. */
401 fctrl_reg
|= IXGBE_FCTRL_DPF
;
402 IXGBE_WRITE_REG(hw
, IXGBE_FCTRL
, fctrl_reg
);
403 IXGBE_WRITE_REG(hw
, IXGBE_RMCS
, rmcs_reg
);
405 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
406 for (i
= 0; i
< MAX_TRAFFIC_CLASS
; i
++) {
407 if ((hw
->fc
.current_mode
& ixgbe_fc_tx_pause
) &&
408 hw
->fc
.high_water
[i
]) {
409 fcrtl
= (hw
->fc
.low_water
[i
] << 10) | IXGBE_FCRTL_XONE
;
410 fcrth
= (hw
->fc
.high_water
[i
] << 10) | IXGBE_FCRTH_FCEN
;
411 IXGBE_WRITE_REG(hw
, IXGBE_FCRTL(i
), fcrtl
);
412 IXGBE_WRITE_REG(hw
, IXGBE_FCRTH(i
), fcrth
);
414 IXGBE_WRITE_REG(hw
, IXGBE_FCRTL(i
), 0);
415 IXGBE_WRITE_REG(hw
, IXGBE_FCRTH(i
), 0);
420 /* Configure pause time (2 TCs per register) */
421 reg
= hw
->fc
.pause_time
* 0x00010001;
422 for (i
= 0; i
< (MAX_TRAFFIC_CLASS
/ 2); i
++)
423 IXGBE_WRITE_REG(hw
, IXGBE_FCTTV(i
), reg
);
425 /* Configure flow control refresh threshold value */
426 IXGBE_WRITE_REG(hw
, IXGBE_FCRTV
, hw
->fc
.pause_time
/ 2);
432 * ixgbe_start_mac_link_82598 - Configures MAC link settings
433 * @hw: pointer to hardware structure
434 * @autoneg_wait_to_complete: true when waiting for completion is needed
436 * Configures link settings based on values in the ixgbe_hw struct.
437 * Restarts the link. Performs autonegotiation if needed.
439 static s32
ixgbe_start_mac_link_82598(struct ixgbe_hw
*hw
,
440 bool autoneg_wait_to_complete
)
448 autoc_reg
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
449 autoc_reg
|= IXGBE_AUTOC_AN_RESTART
;
450 IXGBE_WRITE_REG(hw
, IXGBE_AUTOC
, autoc_reg
);
452 /* Only poll for autoneg to complete if specified to do so */
453 if (autoneg_wait_to_complete
) {
454 if ((autoc_reg
& IXGBE_AUTOC_LMS_MASK
) ==
455 IXGBE_AUTOC_LMS_KX4_AN
||
456 (autoc_reg
& IXGBE_AUTOC_LMS_MASK
) ==
457 IXGBE_AUTOC_LMS_KX4_AN_1G_AN
) {
458 links_reg
= 0; /* Just in case Autoneg time = 0 */
459 for (i
= 0; i
< IXGBE_AUTO_NEG_TIME
; i
++) {
460 links_reg
= IXGBE_READ_REG(hw
, IXGBE_LINKS
);
461 if (links_reg
& IXGBE_LINKS_KX_AN_COMP
)
465 if (!(links_reg
& IXGBE_LINKS_KX_AN_COMP
)) {
466 status
= IXGBE_ERR_AUTONEG_NOT_COMPLETE
;
467 hw_dbg(hw
, "Autonegotiation did not complete.\n");
472 /* Add delay to filter out noises during initial link setup */
479 * ixgbe_validate_link_ready - Function looks for phy link
480 * @hw: pointer to hardware structure
482 * Function indicates success when phy link is available. If phy is not ready
483 * within 5 seconds of MAC indicating link, the function returns error.
485 static s32
ixgbe_validate_link_ready(struct ixgbe_hw
*hw
)
490 if (hw
->device_id
!= IXGBE_DEV_ID_82598AT2
)
494 timeout
< IXGBE_VALIDATE_LINK_READY_TIMEOUT
; timeout
++) {
495 hw
->phy
.ops
.read_reg(hw
, MDIO_STAT1
, MDIO_MMD_AN
, &an_reg
);
497 if ((an_reg
& MDIO_AN_STAT1_COMPLETE
) &&
498 (an_reg
& MDIO_STAT1_LSTATUS
))
504 if (timeout
== IXGBE_VALIDATE_LINK_READY_TIMEOUT
) {
505 hw_dbg(hw
, "Link was indicated but link is down\n");
506 return IXGBE_ERR_LINK_SETUP
;
513 * ixgbe_check_mac_link_82598 - Get link/speed status
514 * @hw: pointer to hardware structure
515 * @speed: pointer to link speed
516 * @link_up: true is link is up, false otherwise
517 * @link_up_wait_to_complete: bool used to wait for link up or not
519 * Reads the links register to determine if link is up and the current speed
521 static s32
ixgbe_check_mac_link_82598(struct ixgbe_hw
*hw
,
522 ixgbe_link_speed
*speed
, bool *link_up
,
523 bool link_up_wait_to_complete
)
527 u16 link_reg
, adapt_comp_reg
;
530 * SERDES PHY requires us to read link status from register 0xC79F.
531 * Bit 0 set indicates link is up/ready; clear indicates link down.
532 * 0xC00C is read to check that the XAUI lanes are active. Bit 0
533 * clear indicates active; set indicates inactive.
535 if (hw
->phy
.type
== ixgbe_phy_nl
) {
536 hw
->phy
.ops
.read_reg(hw
, 0xC79F, MDIO_MMD_PMAPMD
, &link_reg
);
537 hw
->phy
.ops
.read_reg(hw
, 0xC79F, MDIO_MMD_PMAPMD
, &link_reg
);
538 hw
->phy
.ops
.read_reg(hw
, 0xC00C, MDIO_MMD_PMAPMD
,
540 if (link_up_wait_to_complete
) {
541 for (i
= 0; i
< IXGBE_LINK_UP_TIME
; i
++) {
542 if ((link_reg
& 1) &&
543 ((adapt_comp_reg
& 1) == 0)) {
550 hw
->phy
.ops
.read_reg(hw
, 0xC79F,
553 hw
->phy
.ops
.read_reg(hw
, 0xC00C,
558 if ((link_reg
& 1) && ((adapt_comp_reg
& 1) == 0))
568 links_reg
= IXGBE_READ_REG(hw
, IXGBE_LINKS
);
569 if (link_up_wait_to_complete
) {
570 for (i
= 0; i
< IXGBE_LINK_UP_TIME
; i
++) {
571 if (links_reg
& IXGBE_LINKS_UP
) {
578 links_reg
= IXGBE_READ_REG(hw
, IXGBE_LINKS
);
581 if (links_reg
& IXGBE_LINKS_UP
)
587 if (links_reg
& IXGBE_LINKS_SPEED
)
588 *speed
= IXGBE_LINK_SPEED_10GB_FULL
;
590 *speed
= IXGBE_LINK_SPEED_1GB_FULL
;
592 if ((hw
->device_id
== IXGBE_DEV_ID_82598AT2
) && *link_up
&&
593 (ixgbe_validate_link_ready(hw
) != 0))
600 * ixgbe_setup_mac_link_82598 - Set MAC link speed
601 * @hw: pointer to hardware structure
602 * @speed: new link speed
603 * @autoneg_wait_to_complete: true when waiting for completion is needed
605 * Set the link speed in the AUTOC register and restarts link.
607 static s32
ixgbe_setup_mac_link_82598(struct ixgbe_hw
*hw
,
608 ixgbe_link_speed speed
,
609 bool autoneg_wait_to_complete
)
611 bool autoneg
= false;
612 ixgbe_link_speed link_capabilities
= IXGBE_LINK_SPEED_UNKNOWN
;
613 u32 curr_autoc
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
614 u32 autoc
= curr_autoc
;
615 u32 link_mode
= autoc
& IXGBE_AUTOC_LMS_MASK
;
617 /* Check to see if speed passed in is supported. */
618 ixgbe_get_link_capabilities_82598(hw
, &link_capabilities
, &autoneg
);
619 speed
&= link_capabilities
;
621 if (speed
== IXGBE_LINK_SPEED_UNKNOWN
)
622 return IXGBE_ERR_LINK_SETUP
;
624 /* Set KX4/KX support according to speed requested */
625 else if (link_mode
== IXGBE_AUTOC_LMS_KX4_AN
||
626 link_mode
== IXGBE_AUTOC_LMS_KX4_AN_1G_AN
) {
627 autoc
&= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK
;
628 if (speed
& IXGBE_LINK_SPEED_10GB_FULL
)
629 autoc
|= IXGBE_AUTOC_KX4_SUPP
;
630 if (speed
& IXGBE_LINK_SPEED_1GB_FULL
)
631 autoc
|= IXGBE_AUTOC_KX_SUPP
;
632 if (autoc
!= curr_autoc
)
633 IXGBE_WRITE_REG(hw
, IXGBE_AUTOC
, autoc
);
636 /* Setup and restart the link based on the new values in
637 * ixgbe_hw This will write the AUTOC register based on the new
640 return ixgbe_start_mac_link_82598(hw
, autoneg_wait_to_complete
);
645 * ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
646 * @hw: pointer to hardware structure
647 * @speed: new link speed
648 * @autoneg_wait_to_complete: true if waiting is needed to complete
650 * Sets the link speed in the AUTOC register in the MAC and restarts link.
652 static s32
ixgbe_setup_copper_link_82598(struct ixgbe_hw
*hw
,
653 ixgbe_link_speed speed
,
654 bool autoneg_wait_to_complete
)
658 /* Setup the PHY according to input speed */
659 status
= hw
->phy
.ops
.setup_link_speed(hw
, speed
,
660 autoneg_wait_to_complete
);
662 ixgbe_start_mac_link_82598(hw
, autoneg_wait_to_complete
);
668 * ixgbe_reset_hw_82598 - Performs hardware reset
669 * @hw: pointer to hardware structure
671 * Resets the hardware by resetting the transmit and receive units, masks and
672 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
675 static s32
ixgbe_reset_hw_82598(struct ixgbe_hw
*hw
)
685 /* Call adapter stop to disable tx/rx and clear interrupts */
686 status
= hw
->mac
.ops
.stop_adapter(hw
);
691 * Power up the Atlas Tx lanes if they are currently powered down.
692 * Atlas Tx lanes are powered down for MAC loopback tests, but
693 * they are not automatically restored on reset.
695 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_LPBK
, &analog_val
);
696 if (analog_val
& IXGBE_ATLAS_PDN_TX_REG_EN
) {
697 /* Enable Tx Atlas so packets can be transmitted again */
698 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_LPBK
,
700 analog_val
&= ~IXGBE_ATLAS_PDN_TX_REG_EN
;
701 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_LPBK
,
704 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_10G
,
706 analog_val
&= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL
;
707 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_10G
,
710 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_1G
,
712 analog_val
&= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL
;
713 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_1G
,
716 hw
->mac
.ops
.read_analog_reg8(hw
, IXGBE_ATLAS_PDN_AN
,
718 analog_val
&= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL
;
719 hw
->mac
.ops
.write_analog_reg8(hw
, IXGBE_ATLAS_PDN_AN
,
724 if (hw
->phy
.reset_disable
== false) {
725 /* PHY ops must be identified and initialized prior to reset */
727 /* Init PHY and function pointers, perform SFP setup */
728 phy_status
= hw
->phy
.ops
.init(hw
);
729 if (phy_status
== IXGBE_ERR_SFP_NOT_SUPPORTED
)
731 if (phy_status
== IXGBE_ERR_SFP_NOT_PRESENT
)
734 hw
->phy
.ops
.reset(hw
);
739 * Issue global reset to the MAC. This needs to be a SW reset.
740 * If link reset is used, it might reset the MAC when mng is using it
742 ctrl
= IXGBE_READ_REG(hw
, IXGBE_CTRL
) | IXGBE_CTRL_RST
;
743 IXGBE_WRITE_REG(hw
, IXGBE_CTRL
, ctrl
);
744 IXGBE_WRITE_FLUSH(hw
);
745 usleep_range(1000, 1200);
747 /* Poll for reset bit to self-clear indicating reset is complete */
748 for (i
= 0; i
< 10; i
++) {
749 ctrl
= IXGBE_READ_REG(hw
, IXGBE_CTRL
);
750 if (!(ctrl
& IXGBE_CTRL_RST
))
754 if (ctrl
& IXGBE_CTRL_RST
) {
755 status
= IXGBE_ERR_RESET_FAILED
;
756 hw_dbg(hw
, "Reset polling failed to complete.\n");
762 * Double resets are required for recovery from certain error
763 * conditions. Between resets, it is necessary to stall to allow time
764 * for any pending HW events to complete.
766 if (hw
->mac
.flags
& IXGBE_FLAGS_DOUBLE_RESET_REQUIRED
) {
767 hw
->mac
.flags
&= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED
;
771 gheccr
= IXGBE_READ_REG(hw
, IXGBE_GHECCR
);
772 gheccr
&= ~(BIT(21) | BIT(18) | BIT(9) | BIT(6));
773 IXGBE_WRITE_REG(hw
, IXGBE_GHECCR
, gheccr
);
776 * Store the original AUTOC value if it has not been
777 * stored off yet. Otherwise restore the stored original
778 * AUTOC value since the reset operation sets back to deaults.
780 autoc
= IXGBE_READ_REG(hw
, IXGBE_AUTOC
);
781 if (hw
->mac
.orig_link_settings_stored
== false) {
782 hw
->mac
.orig_autoc
= autoc
;
783 hw
->mac
.orig_link_settings_stored
= true;
784 } else if (autoc
!= hw
->mac
.orig_autoc
) {
785 IXGBE_WRITE_REG(hw
, IXGBE_AUTOC
, hw
->mac
.orig_autoc
);
788 /* Store the permanent mac address */
789 hw
->mac
.ops
.get_mac_addr(hw
, hw
->mac
.perm_addr
);
792 * Store MAC address from RAR0, clear receive address registers, and
793 * clear the multicast table
795 hw
->mac
.ops
.init_rx_addrs(hw
);
804 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
805 * @hw: pointer to hardware struct
806 * @rar: receive address register index to associate with a VMDq index
807 * @vmdq: VMDq set index
809 static s32
ixgbe_set_vmdq_82598(struct ixgbe_hw
*hw
, u32 rar
, u32 vmdq
)
812 u32 rar_entries
= hw
->mac
.num_rar_entries
;
814 /* Make sure we are using a valid rar index range */
815 if (rar
>= rar_entries
) {
816 hw_dbg(hw
, "RAR index %d is out of range.\n", rar
);
817 return IXGBE_ERR_INVALID_ARGUMENT
;
820 rar_high
= IXGBE_READ_REG(hw
, IXGBE_RAH(rar
));
821 rar_high
&= ~IXGBE_RAH_VIND_MASK
;
822 rar_high
|= ((vmdq
<< IXGBE_RAH_VIND_SHIFT
) & IXGBE_RAH_VIND_MASK
);
823 IXGBE_WRITE_REG(hw
, IXGBE_RAH(rar
), rar_high
);
828 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
829 * @hw: pointer to hardware struct
830 * @rar: receive address register index to associate with a VMDq index
831 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
833 static s32
ixgbe_clear_vmdq_82598(struct ixgbe_hw
*hw
, u32 rar
, u32 vmdq
)
836 u32 rar_entries
= hw
->mac
.num_rar_entries
;
839 /* Make sure we are using a valid rar index range */
840 if (rar
>= rar_entries
) {
841 hw_dbg(hw
, "RAR index %d is out of range.\n", rar
);
842 return IXGBE_ERR_INVALID_ARGUMENT
;
845 rar_high
= IXGBE_READ_REG(hw
, IXGBE_RAH(rar
));
846 if (rar_high
& IXGBE_RAH_VIND_MASK
) {
847 rar_high
&= ~IXGBE_RAH_VIND_MASK
;
848 IXGBE_WRITE_REG(hw
, IXGBE_RAH(rar
), rar_high
);
855 * ixgbe_set_vfta_82598 - Set VLAN filter table
856 * @hw: pointer to hardware structure
857 * @vlan: VLAN id to write to VLAN filter
858 * @vind: VMDq output index that maps queue to VLAN id in VFTA
859 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
860 * @vlvf_bypass: boolean flag - unused
862 * Turn on/off specified VLAN in the VLAN filter table.
864 static s32
ixgbe_set_vfta_82598(struct ixgbe_hw
*hw
, u32 vlan
, u32 vind
,
865 bool vlan_on
, bool vlvf_bypass
)
873 return IXGBE_ERR_PARAM
;
875 /* Determine 32-bit word position in array */
876 regindex
= (vlan
>> 5) & 0x7F; /* upper seven bits */
878 /* Determine the location of the (VMD) queue index */
879 vftabyte
= ((vlan
>> 3) & 0x03); /* bits (4:3) indicating byte array */
880 bitindex
= (vlan
& 0x7) << 2; /* lower 3 bits indicate nibble */
882 /* Set the nibble for VMD queue index */
883 bits
= IXGBE_READ_REG(hw
, IXGBE_VFTAVIND(vftabyte
, regindex
));
884 bits
&= (~(0x0F << bitindex
));
885 bits
|= (vind
<< bitindex
);
886 IXGBE_WRITE_REG(hw
, IXGBE_VFTAVIND(vftabyte
, regindex
), bits
);
888 /* Determine the location of the bit for this VLAN id */
889 bitindex
= vlan
& 0x1F; /* lower five bits */
891 bits
= IXGBE_READ_REG(hw
, IXGBE_VFTA(regindex
));
893 /* Turn on this VLAN id */
894 bits
|= BIT(bitindex
);
896 /* Turn off this VLAN id */
897 bits
&= ~BIT(bitindex
);
898 IXGBE_WRITE_REG(hw
, IXGBE_VFTA(regindex
), bits
);
904 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
905 * @hw: pointer to hardware structure
907 * Clears the VLAN filer table, and the VMDq index associated with the filter
909 static s32
ixgbe_clear_vfta_82598(struct ixgbe_hw
*hw
)
914 for (offset
= 0; offset
< hw
->mac
.vft_size
; offset
++)
915 IXGBE_WRITE_REG(hw
, IXGBE_VFTA(offset
), 0);
917 for (vlanbyte
= 0; vlanbyte
< 4; vlanbyte
++)
918 for (offset
= 0; offset
< hw
->mac
.vft_size
; offset
++)
919 IXGBE_WRITE_REG(hw
, IXGBE_VFTAVIND(vlanbyte
, offset
),
926 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
927 * @hw: pointer to hardware structure
928 * @reg: analog register to read
931 * Performs read operation to Atlas analog register specified.
933 static s32
ixgbe_read_analog_reg8_82598(struct ixgbe_hw
*hw
, u32 reg
, u8
*val
)
937 IXGBE_WRITE_REG(hw
, IXGBE_ATLASCTL
,
938 IXGBE_ATLASCTL_WRITE_CMD
| (reg
<< 8));
939 IXGBE_WRITE_FLUSH(hw
);
941 atlas_ctl
= IXGBE_READ_REG(hw
, IXGBE_ATLASCTL
);
942 *val
= (u8
)atlas_ctl
;
948 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
949 * @hw: pointer to hardware structure
950 * @reg: atlas register to write
951 * @val: value to write
953 * Performs write operation to Atlas analog register specified.
955 static s32
ixgbe_write_analog_reg8_82598(struct ixgbe_hw
*hw
, u32 reg
, u8 val
)
959 atlas_ctl
= (reg
<< 8) | val
;
960 IXGBE_WRITE_REG(hw
, IXGBE_ATLASCTL
, atlas_ctl
);
961 IXGBE_WRITE_FLUSH(hw
);
968 * ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
969 * @hw: pointer to hardware structure
970 * @dev_addr: address to read from
971 * @byte_offset: byte offset to read from dev_addr
972 * @eeprom_data: value read
974 * Performs 8 byte read operation to SFP module's data over I2C interface.
976 static s32
ixgbe_read_i2c_phy_82598(struct ixgbe_hw
*hw
, u8 dev_addr
,
977 u8 byte_offset
, u8
*eeprom_data
)
986 if (IXGBE_READ_REG(hw
, IXGBE_STATUS
) & IXGBE_STATUS_LAN_ID_1
)
987 gssr
= IXGBE_GSSR_PHY1_SM
;
989 gssr
= IXGBE_GSSR_PHY0_SM
;
991 if (hw
->mac
.ops
.acquire_swfw_sync(hw
, gssr
) != 0)
992 return IXGBE_ERR_SWFW_SYNC
;
994 if (hw
->phy
.type
== ixgbe_phy_nl
) {
996 * phy SDA/SCL registers are at addresses 0xC30A to
997 * 0xC30D. These registers are used to talk to the SFP+
998 * module's EEPROM through the SDA/SCL (I2C) interface.
1000 sfp_addr
= (dev_addr
<< 8) + byte_offset
;
1001 sfp_addr
= (sfp_addr
| IXGBE_I2C_EEPROM_READ_MASK
);
1002 hw
->phy
.ops
.write_reg_mdi(hw
,
1003 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR
,
1008 for (i
= 0; i
< 100; i
++) {
1009 hw
->phy
.ops
.read_reg_mdi(hw
,
1010 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT
,
1013 sfp_stat
= sfp_stat
& IXGBE_I2C_EEPROM_STATUS_MASK
;
1014 if (sfp_stat
!= IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS
)
1016 usleep_range(10000, 20000);
1019 if (sfp_stat
!= IXGBE_I2C_EEPROM_STATUS_PASS
) {
1020 hw_dbg(hw
, "EEPROM read did not pass.\n");
1021 status
= IXGBE_ERR_SFP_NOT_PRESENT
;
1026 hw
->phy
.ops
.read_reg_mdi(hw
, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA
,
1027 MDIO_MMD_PMAPMD
, &sfp_data
);
1029 *eeprom_data
= (u8
)(sfp_data
>> 8);
1031 status
= IXGBE_ERR_PHY
;
1035 hw
->mac
.ops
.release_swfw_sync(hw
, gssr
);
1040 * ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1041 * @hw: pointer to hardware structure
1042 * @byte_offset: EEPROM byte offset to read
1043 * @eeprom_data: value read
1045 * Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1047 static s32
ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw
*hw
, u8 byte_offset
,
1050 return ixgbe_read_i2c_phy_82598(hw
, IXGBE_I2C_EEPROM_DEV_ADDR
,
1051 byte_offset
, eeprom_data
);
1055 * ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1056 * @hw: pointer to hardware structure
1057 * @byte_offset: byte offset at address 0xA2
1058 * @sff8472_data: value read
1060 * Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1062 static s32
ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw
*hw
, u8 byte_offset
,
1065 return ixgbe_read_i2c_phy_82598(hw
, IXGBE_I2C_EEPROM_DEV_ADDR2
,
1066 byte_offset
, sff8472_data
);
1070 * ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1072 * @hw: pointer to the HW structure
1074 * Calls common function and corrects issue with some single port devices
1075 * that enable LAN1 but not LAN0.
1077 static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw
*hw
)
1079 struct ixgbe_bus_info
*bus
= &hw
->bus
;
1083 ixgbe_set_lan_id_multi_port_pcie(hw
);
1085 /* check if LAN0 is disabled */
1086 hw
->eeprom
.ops
.read(hw
, IXGBE_PCIE_GENERAL_PTR
, &pci_gen
);
1087 if ((pci_gen
!= 0) && (pci_gen
!= 0xFFFF)) {
1089 hw
->eeprom
.ops
.read(hw
, pci_gen
+ IXGBE_PCIE_CTRL2
, &pci_ctrl2
);
1091 /* if LAN0 is completely disabled force function to 0 */
1092 if ((pci_ctrl2
& IXGBE_PCIE_CTRL2_LAN_DISABLE
) &&
1093 !(pci_ctrl2
& IXGBE_PCIE_CTRL2_DISABLE_SELECT
) &&
1094 !(pci_ctrl2
& IXGBE_PCIE_CTRL2_DUMMY_ENABLE
)) {
1102 * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1103 * @hw: pointer to hardware structure
1104 * @num_pb: number of packet buffers to allocate
1105 * @headroom: reserve n KB of headroom
1106 * @strategy: packet buffer allocation strategy
1108 static void ixgbe_set_rxpba_82598(struct ixgbe_hw
*hw
, int num_pb
,
1109 u32 headroom
, int strategy
)
1111 u32 rxpktsize
= IXGBE_RXPBSIZE_64KB
;
1117 /* Setup Rx packet buffer sizes */
1119 case PBA_STRATEGY_WEIGHTED
:
1120 /* Setup the first four at 80KB */
1121 rxpktsize
= IXGBE_RXPBSIZE_80KB
;
1123 IXGBE_WRITE_REG(hw
, IXGBE_RXPBSIZE(i
), rxpktsize
);
1124 /* Setup the last four at 48KB...don't re-init i */
1125 rxpktsize
= IXGBE_RXPBSIZE_48KB
;
1127 case PBA_STRATEGY_EQUAL
:
1129 /* Divide the remaining Rx packet buffer evenly among the TCs */
1130 for (; i
< IXGBE_MAX_PACKET_BUFFERS
; i
++)
1131 IXGBE_WRITE_REG(hw
, IXGBE_RXPBSIZE(i
), rxpktsize
);
1135 /* Setup Tx packet buffer sizes */
1136 for (i
= 0; i
< IXGBE_MAX_PACKET_BUFFERS
; i
++)
1137 IXGBE_WRITE_REG(hw
, IXGBE_TXPBSIZE(i
), IXGBE_TXPBSIZE_40KB
);
1140 static const struct ixgbe_mac_operations mac_ops_82598
= {
1141 .init_hw
= &ixgbe_init_hw_generic
,
1142 .reset_hw
= &ixgbe_reset_hw_82598
,
1143 .start_hw
= &ixgbe_start_hw_82598
,
1144 .clear_hw_cntrs
= &ixgbe_clear_hw_cntrs_generic
,
1145 .get_media_type
= &ixgbe_get_media_type_82598
,
1146 .enable_rx_dma
= &ixgbe_enable_rx_dma_generic
,
1147 .get_mac_addr
= &ixgbe_get_mac_addr_generic
,
1148 .stop_adapter
= &ixgbe_stop_adapter_generic
,
1149 .get_bus_info
= &ixgbe_get_bus_info_generic
,
1150 .set_lan_id
= &ixgbe_set_lan_id_multi_port_pcie_82598
,
1151 .read_analog_reg8
= &ixgbe_read_analog_reg8_82598
,
1152 .write_analog_reg8
= &ixgbe_write_analog_reg8_82598
,
1153 .setup_link
= &ixgbe_setup_mac_link_82598
,
1154 .set_rxpba
= &ixgbe_set_rxpba_82598
,
1155 .check_link
= &ixgbe_check_mac_link_82598
,
1156 .get_link_capabilities
= &ixgbe_get_link_capabilities_82598
,
1157 .led_on
= &ixgbe_led_on_generic
,
1158 .led_off
= &ixgbe_led_off_generic
,
1159 .init_led_link_act
= ixgbe_init_led_link_act_generic
,
1160 .blink_led_start
= &ixgbe_blink_led_start_generic
,
1161 .blink_led_stop
= &ixgbe_blink_led_stop_generic
,
1162 .set_rar
= &ixgbe_set_rar_generic
,
1163 .clear_rar
= &ixgbe_clear_rar_generic
,
1164 .set_vmdq
= &ixgbe_set_vmdq_82598
,
1165 .clear_vmdq
= &ixgbe_clear_vmdq_82598
,
1166 .init_rx_addrs
= &ixgbe_init_rx_addrs_generic
,
1167 .update_mc_addr_list
= &ixgbe_update_mc_addr_list_generic
,
1168 .enable_mc
= &ixgbe_enable_mc_generic
,
1169 .disable_mc
= &ixgbe_disable_mc_generic
,
1170 .clear_vfta
= &ixgbe_clear_vfta_82598
,
1171 .set_vfta
= &ixgbe_set_vfta_82598
,
1172 .fc_enable
= &ixgbe_fc_enable_82598
,
1173 .setup_fc
= ixgbe_setup_fc_generic
,
1174 .fc_autoneg
= ixgbe_fc_autoneg
,
1175 .set_fw_drv_ver
= NULL
,
1176 .acquire_swfw_sync
= &ixgbe_acquire_swfw_sync
,
1177 .release_swfw_sync
= &ixgbe_release_swfw_sync
,
1178 .init_swfw_sync
= NULL
,
1179 .get_thermal_sensor_data
= NULL
,
1180 .init_thermal_sensor_thresh
= NULL
,
1181 .prot_autoc_read
= &prot_autoc_read_generic
,
1182 .prot_autoc_write
= &prot_autoc_write_generic
,
1183 .enable_rx
= &ixgbe_enable_rx_generic
,
1184 .disable_rx
= &ixgbe_disable_rx_generic
,
1187 static const struct ixgbe_eeprom_operations eeprom_ops_82598
= {
1188 .init_params
= &ixgbe_init_eeprom_params_generic
,
1189 .read
= &ixgbe_read_eerd_generic
,
1190 .write
= &ixgbe_write_eeprom_generic
,
1191 .write_buffer
= &ixgbe_write_eeprom_buffer_bit_bang_generic
,
1192 .read_buffer
= &ixgbe_read_eerd_buffer_generic
,
1193 .calc_checksum
= &ixgbe_calc_eeprom_checksum_generic
,
1194 .validate_checksum
= &ixgbe_validate_eeprom_checksum_generic
,
1195 .update_checksum
= &ixgbe_update_eeprom_checksum_generic
,
1198 static const struct ixgbe_phy_operations phy_ops_82598
= {
1199 .identify
= &ixgbe_identify_phy_generic
,
1200 .identify_sfp
= &ixgbe_identify_module_generic
,
1201 .init
= &ixgbe_init_phy_ops_82598
,
1202 .reset
= &ixgbe_reset_phy_generic
,
1203 .read_reg
= &ixgbe_read_phy_reg_generic
,
1204 .write_reg
= &ixgbe_write_phy_reg_generic
,
1205 .read_reg_mdi
= &ixgbe_read_phy_reg_mdi
,
1206 .write_reg_mdi
= &ixgbe_write_phy_reg_mdi
,
1207 .setup_link
= &ixgbe_setup_phy_link_generic
,
1208 .setup_link_speed
= &ixgbe_setup_phy_link_speed_generic
,
1209 .read_i2c_sff8472
= &ixgbe_read_i2c_sff8472_82598
,
1210 .read_i2c_eeprom
= &ixgbe_read_i2c_eeprom_82598
,
1211 .check_overtemp
= &ixgbe_tn_check_overtemp
,
1214 const struct ixgbe_info ixgbe_82598_info
= {
1215 .mac
= ixgbe_mac_82598EB
,
1216 .get_invariants
= &ixgbe_get_invariants_82598
,
1217 .mac_ops
= &mac_ops_82598
,
1218 .eeprom_ops
= &eeprom_ops_82598
,
1219 .phy_ops
= &phy_ops_82598
,
1220 .mvals
= ixgbe_mvals_8259X
,