1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2009 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 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *******************************************************************************/
28 #include <linux/pci.h>
29 #include <linux/delay.h>
30 #include <linux/sched.h>
33 #include "ixgbe_phy.h"
35 #define IXGBE_82598_MAX_TX_QUEUES 32
36 #define IXGBE_82598_MAX_RX_QUEUES 64
37 #define IXGBE_82598_RAR_ENTRIES 16
38 #define IXGBE_82598_MC_TBL_SIZE 128
39 #define IXGBE_82598_VFT_TBL_SIZE 128
41 static s32 ixgbe_get_copper_link_capabilities_82598(struct ixgbe_hw *hw,
42 ixgbe_link_speed *speed,
44 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw);
45 static s32 ixgbe_setup_copper_link_speed_82598(struct ixgbe_hw *hw,
46 ixgbe_link_speed speed,
48 bool autoneg_wait_to_complete);
49 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
53 * ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
54 * @hw: pointer to hardware structure
56 * Read PCIe configuration space, and get the MSI-X vector count from
57 * the capabilities table.
59 static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
61 struct ixgbe_adapter *adapter = hw->back;
63 pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82598_CAPS,
65 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
67 /* MSI-X count is zero-based in HW, so increment to give proper value */
75 static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
77 struct ixgbe_mac_info *mac = &hw->mac;
78 struct ixgbe_phy_info *phy = &hw->phy;
80 u16 list_offset, data_offset;
82 /* Call PHY identify routine to get the phy type */
83 ixgbe_identify_phy_generic(hw);
88 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
89 phy->ops.get_firmware_version =
90 &ixgbe_get_phy_firmware_version_tnx;
93 phy->ops.reset = &ixgbe_reset_phy_nl;
95 /* Call SFP+ identify routine to get the SFP+ module type */
96 ret_val = phy->ops.identify_sfp(hw);
99 else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
100 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
104 /* Check to see if SFP+ module is supported */
105 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
109 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
117 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
118 mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
119 mac->ops.setup_link_speed =
120 &ixgbe_setup_copper_link_speed_82598;
121 mac->ops.get_link_capabilities =
122 &ixgbe_get_copper_link_capabilities_82598;
125 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
126 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
127 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
128 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
129 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
130 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
137 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
138 * @hw: pointer to hardware structure
139 * @speed: pointer to link speed
140 * @autoneg: boolean auto-negotiation value
142 * Determines the link capabilities by reading the AUTOC register.
144 static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
145 ixgbe_link_speed *speed,
151 * Determine link capabilities based on the stored value of AUTOC,
152 * which represents EEPROM defaults.
154 switch (hw->mac.orig_autoc & IXGBE_AUTOC_LMS_MASK) {
155 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
156 *speed = IXGBE_LINK_SPEED_1GB_FULL;
160 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
161 *speed = IXGBE_LINK_SPEED_10GB_FULL;
165 case IXGBE_AUTOC_LMS_1G_AN:
166 *speed = IXGBE_LINK_SPEED_1GB_FULL;
170 case IXGBE_AUTOC_LMS_KX4_AN:
171 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
172 *speed = IXGBE_LINK_SPEED_UNKNOWN;
173 if (hw->mac.orig_autoc & IXGBE_AUTOC_KX4_SUPP)
174 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
175 if (hw->mac.orig_autoc & IXGBE_AUTOC_KX_SUPP)
176 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
181 status = IXGBE_ERR_LINK_SETUP;
189 * ixgbe_get_copper_link_capabilities_82598 - Determines link capabilities
190 * @hw: pointer to hardware structure
191 * @speed: pointer to link speed
192 * @autoneg: boolean auto-negotiation value
194 * Determines the link capabilities by reading the AUTOC register.
196 static s32 ixgbe_get_copper_link_capabilities_82598(struct ixgbe_hw *hw,
197 ixgbe_link_speed *speed,
200 s32 status = IXGBE_ERR_LINK_SETUP;
206 status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_SPEED_ABILITY,
207 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
211 if (speed_ability & IXGBE_MDIO_PHY_SPEED_10G)
212 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
213 if (speed_ability & IXGBE_MDIO_PHY_SPEED_1G)
214 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
221 * ixgbe_get_media_type_82598 - Determines media type
222 * @hw: pointer to hardware structure
224 * Returns the media type (fiber, copper, backplane)
226 static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
228 enum ixgbe_media_type media_type;
230 /* Media type for I82598 is based on device ID */
231 switch (hw->device_id) {
232 case IXGBE_DEV_ID_82598:
233 case IXGBE_DEV_ID_82598_BX:
234 media_type = ixgbe_media_type_backplane;
236 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
237 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
238 case IXGBE_DEV_ID_82598EB_CX4:
239 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
240 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
241 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
242 case IXGBE_DEV_ID_82598EB_XF_LR:
243 case IXGBE_DEV_ID_82598EB_SFP_LOM:
244 media_type = ixgbe_media_type_fiber;
246 case IXGBE_DEV_ID_82598AT:
247 media_type = ixgbe_media_type_copper;
250 media_type = ixgbe_media_type_unknown;
258 * ixgbe_fc_enable_82598 - Enable flow control
259 * @hw: pointer to hardware structure
260 * @packetbuf_num: packet buffer number (0-7)
262 * Enable flow control according to the current settings.
264 static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
271 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
272 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
274 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
275 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
278 * The possible values of fc.current_mode are:
279 * 0: Flow control is completely disabled
280 * 1: Rx flow control is enabled (we can receive pause frames,
281 * but not send pause frames).
282 * 2: Tx flow control is enabled (we can send pause frames but
283 * we do not support receiving pause frames).
284 * 3: Both Rx and Tx flow control (symmetric) are enabled.
287 switch (hw->fc.current_mode) {
289 /* Flow control completely disabled by software override. */
291 case ixgbe_fc_rx_pause:
293 * Rx Flow control is enabled and Tx Flow control is
294 * disabled by software override. Since there really
295 * isn't a way to advertise that we are capable of RX
296 * Pause ONLY, we will advertise that we support both
297 * symmetric and asymmetric Rx PAUSE. Later, we will
298 * disable the adapter's ability to send PAUSE frames.
300 fctrl_reg |= IXGBE_FCTRL_RFCE;
302 case ixgbe_fc_tx_pause:
304 * Tx Flow control is enabled, and Rx Flow control is
305 * disabled by software override.
307 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
310 /* Flow control (both Rx and Tx) is enabled by SW override. */
311 fctrl_reg |= IXGBE_FCTRL_RFCE;
312 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
315 hw_dbg(hw, "Flow control param set incorrectly\n");
316 ret_val = -IXGBE_ERR_CONFIG;
321 /* Enable 802.3x based flow control settings. */
322 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
323 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
325 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
326 if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
327 if (hw->fc.send_xon) {
328 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
329 (hw->fc.low_water | IXGBE_FCRTL_XONE));
331 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
335 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num),
336 (hw->fc.high_water | IXGBE_FCRTH_FCEN));
339 /* Configure pause time (2 TCs per register) */
340 reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num));
341 if ((packetbuf_num & 1) == 0)
342 reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
344 reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
345 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
347 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
354 * ixgbe_setup_fc_82598 - Configure flow control settings
355 * @hw: pointer to hardware structure
356 * @packetbuf_num: packet buffer number (0-7)
358 * Configures the flow control settings based on SW configuration. This
359 * function is used for 802.3x flow control configuration only.
361 static s32 ixgbe_setup_fc_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
364 ixgbe_link_speed speed;
367 /* Validate the packetbuf configuration */
368 if (packetbuf_num < 0 || packetbuf_num > 7) {
369 hw_dbg(hw, "Invalid packet buffer number [%d], expected range is"
370 " 0-7\n", packetbuf_num);
371 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
376 * Validate the water mark configuration. Zero water marks are invalid
377 * because it causes the controller to just blast out fc packets.
379 if (!hw->fc.low_water || !hw->fc.high_water || !hw->fc.pause_time) {
380 hw_dbg(hw, "Invalid water mark configuration\n");
381 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
386 * Validate the requested mode. Strict IEEE mode does not allow
387 * ixgbe_fc_rx_pause because it will cause testing anomalies.
389 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
390 hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
391 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
396 * 10gig parts do not have a word in the EEPROM to determine the
397 * default flow control setting, so we explicitly set it to full.
399 if (hw->fc.requested_mode == ixgbe_fc_default)
400 hw->fc.requested_mode = ixgbe_fc_full;
403 * Save off the requested flow control mode for use later. Depending
404 * on the link partner's capabilities, we may or may not use this mode.
407 hw->fc.current_mode = hw->fc.requested_mode;
409 /* Decide whether to use autoneg or not. */
410 hw->mac.ops.check_link(hw, &speed, &link_up, false);
411 if (hw->phy.multispeed_fiber && (speed == IXGBE_LINK_SPEED_1GB_FULL))
412 ret_val = ixgbe_fc_autoneg(hw);
417 ret_val = ixgbe_fc_enable_82598(hw, packetbuf_num);
424 * ixgbe_setup_mac_link_82598 - Configures MAC link settings
425 * @hw: pointer to hardware structure
427 * Configures link settings based on values in the ixgbe_hw struct.
428 * Restarts the link. Performs autonegotiation if needed.
430 static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw)
438 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
439 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
440 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
442 /* Only poll for autoneg to complete if specified to do so */
443 if (hw->phy.autoneg_wait_to_complete) {
444 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
445 IXGBE_AUTOC_LMS_KX4_AN ||
446 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
447 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
448 links_reg = 0; /* Just in case Autoneg time = 0 */
449 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
450 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
451 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
455 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
456 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
457 hw_dbg(hw, "Autonegotiation did not complete.\n");
463 * We want to save off the original Flow Control configuration just in
464 * case we get disconnected and then reconnected into a different hub
465 * or switch with different Flow Control capabilities.
467 ixgbe_setup_fc_82598(hw, 0);
469 /* Add delay to filter out noises during initial link setup */
476 * ixgbe_check_mac_link_82598 - Get link/speed status
477 * @hw: pointer to hardware structure
478 * @speed: pointer to link speed
479 * @link_up: true is link is up, false otherwise
480 * @link_up_wait_to_complete: bool used to wait for link up or not
482 * Reads the links register to determine if link is up and the current speed
484 static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
485 ixgbe_link_speed *speed, bool *link_up,
486 bool link_up_wait_to_complete)
490 u16 link_reg, adapt_comp_reg;
493 * SERDES PHY requires us to read link status from register 0xC79F.
494 * Bit 0 set indicates link is up/ready; clear indicates link down.
495 * 0xC00C is read to check that the XAUI lanes are active. Bit 0
496 * clear indicates active; set indicates inactive.
498 if (hw->phy.type == ixgbe_phy_nl) {
499 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
500 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
501 hw->phy.ops.read_reg(hw, 0xC00C, IXGBE_TWINAX_DEV,
503 if (link_up_wait_to_complete) {
504 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
505 if ((link_reg & 1) &&
506 ((adapt_comp_reg & 1) == 0)) {
513 hw->phy.ops.read_reg(hw, 0xC79F,
516 hw->phy.ops.read_reg(hw, 0xC00C,
521 if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
527 if (*link_up == false)
531 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
532 if (link_up_wait_to_complete) {
533 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
534 if (links_reg & IXGBE_LINKS_UP) {
541 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
544 if (links_reg & IXGBE_LINKS_UP)
550 if (links_reg & IXGBE_LINKS_SPEED)
551 *speed = IXGBE_LINK_SPEED_10GB_FULL;
553 *speed = IXGBE_LINK_SPEED_1GB_FULL;
561 * ixgbe_setup_mac_link_speed_82598 - Set MAC link speed
562 * @hw: pointer to hardware structure
563 * @speed: new link speed
564 * @autoneg: true if auto-negotiation enabled
565 * @autoneg_wait_to_complete: true if waiting is needed to complete
567 * Set the link speed in the AUTOC register and restarts link.
569 static s32 ixgbe_setup_mac_link_speed_82598(struct ixgbe_hw *hw,
570 ixgbe_link_speed speed, bool autoneg,
571 bool autoneg_wait_to_complete)
574 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
575 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
576 u32 autoc = curr_autoc;
577 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
579 /* Check to see if speed passed in is supported. */
580 ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
581 speed &= link_capabilities;
583 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
584 status = IXGBE_ERR_LINK_SETUP;
586 /* Set KX4/KX support according to speed requested */
587 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
588 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
589 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
590 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
591 autoc |= IXGBE_AUTOC_KX4_SUPP;
592 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
593 autoc |= IXGBE_AUTOC_KX_SUPP;
594 if (autoc != curr_autoc)
595 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
599 hw->phy.autoneg_wait_to_complete = autoneg_wait_to_complete;
602 * Setup and restart the link based on the new values in
603 * ixgbe_hw This will write the AUTOC register based on the new
606 status = ixgbe_setup_mac_link_82598(hw);
614 * ixgbe_setup_copper_link_82598 - Setup copper link settings
615 * @hw: pointer to hardware structure
617 * Configures link settings based on values in the ixgbe_hw struct.
618 * Restarts the link. Performs autonegotiation if needed. Restart
619 * phy and wait for autonegotiate to finish. Then synchronize the
622 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw)
626 /* Restart autonegotiation on PHY */
627 status = hw->phy.ops.setup_link(hw);
630 ixgbe_setup_mac_link_82598(hw);
636 * ixgbe_setup_copper_link_speed_82598 - Set the PHY autoneg advertised field
637 * @hw: pointer to hardware structure
638 * @speed: new link speed
639 * @autoneg: true if autonegotiation enabled
640 * @autoneg_wait_to_complete: true if waiting is needed to complete
642 * Sets the link speed in the AUTOC register in the MAC and restarts link.
644 static s32 ixgbe_setup_copper_link_speed_82598(struct ixgbe_hw *hw,
645 ixgbe_link_speed speed,
647 bool autoneg_wait_to_complete)
651 /* Setup the PHY according to input speed */
652 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
653 autoneg_wait_to_complete);
656 ixgbe_setup_mac_link_82598(hw);
662 * ixgbe_reset_hw_82598 - Performs hardware reset
663 * @hw: pointer to hardware structure
665 * Resets the hardware by resetting the transmit and receive units, masks and
666 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
669 static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
678 /* Call adapter stop to disable tx/rx and clear interrupts */
679 hw->mac.ops.stop_adapter(hw);
682 * Power up the Atlas Tx lanes if they are currently powered down.
683 * Atlas Tx lanes are powered down for MAC loopback tests, but
684 * they are not automatically restored on reset.
686 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
687 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
688 /* Enable Tx Atlas so packets can be transmitted again */
689 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
691 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
692 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
695 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
697 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
698 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
701 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
703 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
704 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
707 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
709 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
710 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
715 if (hw->phy.reset_disable == false)
716 hw->phy.ops.reset(hw);
719 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
720 * access and verify no pending requests before reset
722 if (ixgbe_disable_pcie_master(hw) != 0) {
723 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
724 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
728 * Issue global reset to the MAC. This needs to be a SW reset.
729 * If link reset is used, it might reset the MAC when mng is using it
731 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
732 IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
733 IXGBE_WRITE_FLUSH(hw);
735 /* Poll for reset bit to self-clear indicating reset is complete */
736 for (i = 0; i < 10; i++) {
738 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
739 if (!(ctrl & IXGBE_CTRL_RST))
742 if (ctrl & IXGBE_CTRL_RST) {
743 status = IXGBE_ERR_RESET_FAILED;
744 hw_dbg(hw, "Reset polling failed to complete.\n");
749 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
750 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
751 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
754 * Store the original AUTOC value if it has not been
755 * stored off yet. Otherwise restore the stored original
756 * AUTOC value since the reset operation sets back to deaults.
758 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
759 if (hw->mac.orig_link_settings_stored == false) {
760 hw->mac.orig_autoc = autoc;
761 hw->mac.orig_link_settings_stored = true;
762 } else if (autoc != hw->mac.orig_autoc) {
763 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
766 /* Store the permanent mac address */
767 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
773 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
774 * @hw: pointer to hardware struct
775 * @rar: receive address register index to associate with a VMDq index
776 * @vmdq: VMDq set index
778 static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
782 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
783 rar_high &= ~IXGBE_RAH_VIND_MASK;
784 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
785 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
790 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
791 * @hw: pointer to hardware struct
792 * @rar: receive address register index to associate with a VMDq index
793 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
795 static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
798 u32 rar_entries = hw->mac.num_rar_entries;
800 if (rar < rar_entries) {
801 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
802 if (rar_high & IXGBE_RAH_VIND_MASK) {
803 rar_high &= ~IXGBE_RAH_VIND_MASK;
804 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
807 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
814 * ixgbe_set_vfta_82598 - Set VLAN filter table
815 * @hw: pointer to hardware structure
816 * @vlan: VLAN id to write to VLAN filter
817 * @vind: VMDq output index that maps queue to VLAN id in VFTA
818 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
820 * Turn on/off specified VLAN in the VLAN filter table.
822 static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
831 return IXGBE_ERR_PARAM;
833 /* Determine 32-bit word position in array */
834 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
836 /* Determine the location of the (VMD) queue index */
837 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
838 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
840 /* Set the nibble for VMD queue index */
841 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
842 bits &= (~(0x0F << bitindex));
843 bits |= (vind << bitindex);
844 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
846 /* Determine the location of the bit for this VLAN id */
847 bitindex = vlan & 0x1F; /* lower five bits */
849 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
851 /* Turn on this VLAN id */
852 bits |= (1 << bitindex);
854 /* Turn off this VLAN id */
855 bits &= ~(1 << bitindex);
856 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
862 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
863 * @hw: pointer to hardware structure
865 * Clears the VLAN filer table, and the VMDq index associated with the filter
867 static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
872 for (offset = 0; offset < hw->mac.vft_size; offset++)
873 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
875 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
876 for (offset = 0; offset < hw->mac.vft_size; offset++)
877 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
884 * ixgbe_blink_led_start_82598 - Blink LED based on index.
885 * @hw: pointer to hardware structure
886 * @index: led number to blink
888 static s32 ixgbe_blink_led_start_82598(struct ixgbe_hw *hw, u32 index)
890 ixgbe_link_speed speed = 0;
892 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
893 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
896 * Link must be up to auto-blink the LEDs on the 82598EB MAC;
897 * force it if link is down.
899 hw->mac.ops.check_link(hw, &speed, &link_up, false);
902 autoc_reg |= IXGBE_AUTOC_FLU;
903 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
907 led_reg &= ~IXGBE_LED_MODE_MASK(index);
908 led_reg |= IXGBE_LED_BLINK(index);
909 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
910 IXGBE_WRITE_FLUSH(hw);
916 * ixgbe_blink_led_stop_82598 - Stop blinking LED based on index.
917 * @hw: pointer to hardware structure
918 * @index: led number to stop blinking
920 static s32 ixgbe_blink_led_stop_82598(struct ixgbe_hw *hw, u32 index)
922 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
923 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
925 autoc_reg &= ~IXGBE_AUTOC_FLU;
926 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
927 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
929 led_reg &= ~IXGBE_LED_MODE_MASK(index);
930 led_reg &= ~IXGBE_LED_BLINK(index);
931 led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
932 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
933 IXGBE_WRITE_FLUSH(hw);
939 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
940 * @hw: pointer to hardware structure
941 * @reg: analog register to read
944 * Performs read operation to Atlas analog register specified.
946 static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
950 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
951 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
952 IXGBE_WRITE_FLUSH(hw);
954 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
955 *val = (u8)atlas_ctl;
961 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
962 * @hw: pointer to hardware structure
963 * @reg: atlas register to write
964 * @val: value to write
966 * Performs write operation to Atlas analog register specified.
968 static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
972 atlas_ctl = (reg << 8) | val;
973 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
974 IXGBE_WRITE_FLUSH(hw);
981 * ixgbe_read_i2c_eeprom_82598 - Read 8 bit EEPROM word of an SFP+ module
982 * over I2C interface through an intermediate phy.
983 * @hw: pointer to hardware structure
984 * @byte_offset: EEPROM byte offset to read
985 * @eeprom_data: value read
987 * Performs byte read operation to SFP module's EEPROM over I2C interface.
989 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
998 if (hw->phy.type == ixgbe_phy_nl) {
1000 * phy SDA/SCL registers are at addresses 0xC30A to
1001 * 0xC30D. These registers are used to talk to the SFP+
1002 * module's EEPROM through the SDA/SCL (I2C) interface.
1004 sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
1005 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1006 hw->phy.ops.write_reg(hw,
1007 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1008 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1012 for (i = 0; i < 100; i++) {
1013 hw->phy.ops.read_reg(hw,
1014 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1015 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1017 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1018 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1023 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1024 hw_dbg(hw, "EEPROM read did not pass.\n");
1025 status = IXGBE_ERR_SFP_NOT_PRESENT;
1030 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1031 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &sfp_data);
1033 *eeprom_data = (u8)(sfp_data >> 8);
1035 status = IXGBE_ERR_PHY;
1044 * ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
1045 * @hw: pointer to hardware structure
1047 * Determines physical layer capabilities of the current configuration.
1049 static s32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
1051 s32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1053 switch (hw->device_id) {
1054 case IXGBE_DEV_ID_82598:
1055 /* Default device ID is mezzanine card KX/KX4 */
1056 physical_layer = (IXGBE_PHYSICAL_LAYER_10GBASE_KX4 |
1057 IXGBE_PHYSICAL_LAYER_1000BASE_KX);
1059 case IXGBE_DEV_ID_82598_BX:
1060 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
1061 case IXGBE_DEV_ID_82598EB_CX4:
1062 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
1063 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1065 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
1066 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1068 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
1069 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
1070 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
1071 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1073 case IXGBE_DEV_ID_82598EB_XF_LR:
1074 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1076 case IXGBE_DEV_ID_82598AT:
1077 physical_layer = (IXGBE_PHYSICAL_LAYER_10GBASE_T |
1078 IXGBE_PHYSICAL_LAYER_1000BASE_T);
1080 case IXGBE_DEV_ID_82598EB_SFP_LOM:
1081 hw->phy.ops.identify_sfp(hw);
1083 switch (hw->phy.sfp_type) {
1084 case ixgbe_sfp_type_da_cu:
1085 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1087 case ixgbe_sfp_type_sr:
1088 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1090 case ixgbe_sfp_type_lr:
1091 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1094 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1100 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1104 return physical_layer;
1107 static struct ixgbe_mac_operations mac_ops_82598 = {
1108 .init_hw = &ixgbe_init_hw_generic,
1109 .reset_hw = &ixgbe_reset_hw_82598,
1110 .start_hw = &ixgbe_start_hw_generic,
1111 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
1112 .get_media_type = &ixgbe_get_media_type_82598,
1113 .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
1114 .get_mac_addr = &ixgbe_get_mac_addr_generic,
1115 .stop_adapter = &ixgbe_stop_adapter_generic,
1116 .read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
1117 .write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
1118 .setup_link = &ixgbe_setup_mac_link_82598,
1119 .setup_link_speed = &ixgbe_setup_mac_link_speed_82598,
1120 .check_link = &ixgbe_check_mac_link_82598,
1121 .get_link_capabilities = &ixgbe_get_link_capabilities_82598,
1122 .led_on = &ixgbe_led_on_generic,
1123 .led_off = &ixgbe_led_off_generic,
1124 .blink_led_start = &ixgbe_blink_led_start_82598,
1125 .blink_led_stop = &ixgbe_blink_led_stop_82598,
1126 .set_rar = &ixgbe_set_rar_generic,
1127 .clear_rar = &ixgbe_clear_rar_generic,
1128 .set_vmdq = &ixgbe_set_vmdq_82598,
1129 .clear_vmdq = &ixgbe_clear_vmdq_82598,
1130 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
1131 .update_uc_addr_list = &ixgbe_update_uc_addr_list_generic,
1132 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
1133 .enable_mc = &ixgbe_enable_mc_generic,
1134 .disable_mc = &ixgbe_disable_mc_generic,
1135 .clear_vfta = &ixgbe_clear_vfta_82598,
1136 .set_vfta = &ixgbe_set_vfta_82598,
1137 .setup_fc = &ixgbe_setup_fc_82598,
1140 static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1141 .init_params = &ixgbe_init_eeprom_params_generic,
1142 .read = &ixgbe_read_eeprom_generic,
1143 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
1144 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
1147 static struct ixgbe_phy_operations phy_ops_82598 = {
1148 .identify = &ixgbe_identify_phy_generic,
1149 .identify_sfp = &ixgbe_identify_sfp_module_generic,
1150 .reset = &ixgbe_reset_phy_generic,
1151 .read_reg = &ixgbe_read_phy_reg_generic,
1152 .write_reg = &ixgbe_write_phy_reg_generic,
1153 .setup_link = &ixgbe_setup_phy_link_generic,
1154 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
1155 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
1158 struct ixgbe_info ixgbe_82598_info = {
1159 .mac = ixgbe_mac_82598EB,
1160 .get_invariants = &ixgbe_get_invariants_82598,
1161 .mac_ops = &mac_ops_82598,
1162 .eeprom_ops = &eeprom_ops_82598,
1163 .phy_ops = &phy_ops_82598,