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_set_pcie_completion_timeout - set pci-e completion timeout
54 * @hw: pointer to the HW structure
56 * The defaults for 82598 should be in the range of 50us to 50ms,
57 * however the hardware default for these parts is 500us to 1ms which is less
58 * than the 10ms recommended by the pci-e spec. To address this we need to
59 * increase the value to either 10ms to 250ms for capability version 1 config,
60 * or 16ms to 55ms for version 2.
62 void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
64 struct ixgbe_adapter *adapter = hw->back;
65 u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
68 /* only take action if timeout value is defaulted to 0 */
69 if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
73 * if capababilities version is type 1 we can write the
74 * timeout of 10ms to 250ms through the GCR register
76 if (!(gcr & IXGBE_GCR_CAP_VER2)) {
77 gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
82 * for version 2 capabilities we need to write the config space
83 * directly in order to set the completion timeout value for
86 pci_read_config_word(adapter->pdev,
87 IXGBE_PCI_DEVICE_CONTROL2, &pcie_devctl2);
88 pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
89 pci_write_config_word(adapter->pdev,
90 IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
92 /* disable completion timeout resend */
93 gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
94 IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
98 * ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
99 * @hw: pointer to hardware structure
101 * Read PCIe configuration space, and get the MSI-X vector count from
102 * the capabilities table.
104 static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
106 struct ixgbe_adapter *adapter = hw->back;
108 pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82598_CAPS,
110 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
112 /* MSI-X count is zero-based in HW, so increment to give proper value */
120 static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
122 struct ixgbe_mac_info *mac = &hw->mac;
124 /* Call PHY identify routine to get the phy type */
125 ixgbe_identify_phy_generic(hw);
127 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
128 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
129 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
130 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
131 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
132 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
138 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
139 * @hw: pointer to hardware structure
141 * Initialize any function pointers that were not able to be
142 * set during get_invariants because the PHY/SFP type was
143 * not known. Perform the SFP init if necessary.
146 s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
148 struct ixgbe_mac_info *mac = &hw->mac;
149 struct ixgbe_phy_info *phy = &hw->phy;
151 u16 list_offset, data_offset;
153 /* Identify the PHY */
154 phy->ops.identify(hw);
156 /* Overwrite the link function pointers if copper PHY */
157 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
158 mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
159 mac->ops.setup_link_speed =
160 &ixgbe_setup_copper_link_speed_82598;
161 mac->ops.get_link_capabilities =
162 &ixgbe_get_copper_link_capabilities_82598;
165 switch (hw->phy.type) {
167 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
168 phy->ops.get_firmware_version =
169 &ixgbe_get_phy_firmware_version_tnx;
172 phy->ops.reset = &ixgbe_reset_phy_nl;
174 /* Call SFP+ identify routine to get the SFP+ module type */
175 ret_val = phy->ops.identify_sfp(hw);
178 else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
179 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
183 /* Check to see if SFP+ module is supported */
184 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
188 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
201 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
202 * @hw: pointer to hardware structure
204 * Starts the hardware using the generic start_hw function.
205 * Then set pcie completion timeout
207 s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
211 ret_val = ixgbe_start_hw_generic(hw);
213 /* set the completion timeout for interface */
215 ixgbe_set_pcie_completion_timeout(hw);
221 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
222 * @hw: pointer to hardware structure
223 * @speed: pointer to link speed
224 * @autoneg: boolean auto-negotiation value
226 * Determines the link capabilities by reading the AUTOC register.
228 static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
229 ixgbe_link_speed *speed,
236 * Determine link capabilities based on the stored value of AUTOC,
237 * which represents EEPROM defaults. If AUTOC value has not been
238 * stored, use the current register value.
240 if (hw->mac.orig_link_settings_stored)
241 autoc = hw->mac.orig_autoc;
243 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
245 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
246 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
247 *speed = IXGBE_LINK_SPEED_1GB_FULL;
251 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
252 *speed = IXGBE_LINK_SPEED_10GB_FULL;
256 case IXGBE_AUTOC_LMS_1G_AN:
257 *speed = IXGBE_LINK_SPEED_1GB_FULL;
261 case IXGBE_AUTOC_LMS_KX4_AN:
262 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
263 *speed = IXGBE_LINK_SPEED_UNKNOWN;
264 if (autoc & IXGBE_AUTOC_KX4_SUPP)
265 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
266 if (autoc & IXGBE_AUTOC_KX_SUPP)
267 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
272 status = IXGBE_ERR_LINK_SETUP;
280 * ixgbe_get_copper_link_capabilities_82598 - Determines link capabilities
281 * @hw: pointer to hardware structure
282 * @speed: pointer to link speed
283 * @autoneg: boolean auto-negotiation value
285 * Determines the link capabilities by reading the AUTOC register.
287 static s32 ixgbe_get_copper_link_capabilities_82598(struct ixgbe_hw *hw,
288 ixgbe_link_speed *speed,
291 s32 status = IXGBE_ERR_LINK_SETUP;
297 status = hw->phy.ops.read_reg(hw, MDIO_SPEED, MDIO_MMD_PMAPMD,
301 if (speed_ability & MDIO_SPEED_10G)
302 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
303 if (speed_ability & MDIO_PMA_SPEED_1000)
304 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
311 * ixgbe_get_media_type_82598 - Determines media type
312 * @hw: pointer to hardware structure
314 * Returns the media type (fiber, copper, backplane)
316 static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
318 enum ixgbe_media_type media_type;
320 /* Media type for I82598 is based on device ID */
321 switch (hw->device_id) {
322 case IXGBE_DEV_ID_82598:
323 case IXGBE_DEV_ID_82598_BX:
324 media_type = ixgbe_media_type_backplane;
326 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
327 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
328 case IXGBE_DEV_ID_82598EB_CX4:
329 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
330 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
331 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
332 case IXGBE_DEV_ID_82598EB_XF_LR:
333 case IXGBE_DEV_ID_82598EB_SFP_LOM:
334 media_type = ixgbe_media_type_fiber;
336 case IXGBE_DEV_ID_82598AT:
337 case IXGBE_DEV_ID_82598AT2:
338 media_type = ixgbe_media_type_copper;
341 media_type = ixgbe_media_type_unknown;
349 * ixgbe_fc_enable_82598 - Enable flow control
350 * @hw: pointer to hardware structure
351 * @packetbuf_num: packet buffer number (0-7)
353 * Enable flow control according to the current settings.
355 static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
363 if (hw->fc.requested_mode == ixgbe_fc_pfc)
366 #endif /* CONFIG_DCB */
367 /* Negotiate the fc mode to use */
368 ret_val = ixgbe_fc_autoneg(hw);
372 /* Disable any previous flow control settings */
373 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
374 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
376 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
377 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
380 * The possible values of fc.current_mode are:
381 * 0: Flow control is completely disabled
382 * 1: Rx flow control is enabled (we can receive pause frames,
383 * but not send pause frames).
384 * 2: Tx flow control is enabled (we can send pause frames but
385 * we do not support receiving pause frames).
386 * 3: Both Rx and Tx flow control (symmetric) are enabled.
389 * 4: Priority Flow Control is enabled.
392 switch (hw->fc.current_mode) {
395 * Flow control is disabled by software override or autoneg.
396 * The code below will actually disable it in the HW.
399 case ixgbe_fc_rx_pause:
401 * Rx Flow control is enabled and Tx Flow control is
402 * disabled by software override. Since there really
403 * isn't a way to advertise that we are capable of RX
404 * Pause ONLY, we will advertise that we support both
405 * symmetric and asymmetric Rx PAUSE. Later, we will
406 * disable the adapter's ability to send PAUSE frames.
408 fctrl_reg |= IXGBE_FCTRL_RFCE;
410 case ixgbe_fc_tx_pause:
412 * Tx Flow control is enabled, and Rx Flow control is
413 * disabled by software override.
415 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
418 /* Flow control (both Rx and Tx) is enabled by SW override. */
419 fctrl_reg |= IXGBE_FCTRL_RFCE;
420 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
426 #endif /* CONFIG_DCB */
428 hw_dbg(hw, "Flow control param set incorrectly\n");
429 ret_val = -IXGBE_ERR_CONFIG;
434 /* Set 802.3x based flow control settings. */
435 fctrl_reg |= IXGBE_FCTRL_DPF;
436 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
437 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
439 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
440 if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
441 if (hw->fc.send_xon) {
442 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
443 (hw->fc.low_water | IXGBE_FCRTL_XONE));
445 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
449 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num),
450 (hw->fc.high_water | IXGBE_FCRTH_FCEN));
453 /* Configure pause time (2 TCs per register) */
454 reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
455 if ((packetbuf_num & 1) == 0)
456 reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
458 reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
459 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
461 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
468 * ixgbe_setup_mac_link_82598 - Configures MAC link settings
469 * @hw: pointer to hardware structure
471 * Configures link settings based on values in the ixgbe_hw struct.
472 * Restarts the link. Performs autonegotiation if needed.
474 static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw)
482 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
483 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
484 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
486 /* Only poll for autoneg to complete if specified to do so */
487 if (hw->phy.autoneg_wait_to_complete) {
488 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
489 IXGBE_AUTOC_LMS_KX4_AN ||
490 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
491 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
492 links_reg = 0; /* Just in case Autoneg time = 0 */
493 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
494 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
495 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
499 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
500 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
501 hw_dbg(hw, "Autonegotiation did not complete.\n");
506 /* Add delay to filter out noises during initial 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))
564 if (*link_up == false)
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 link is down, zero out the current_mode */
593 if (*link_up == false) {
594 hw->fc.current_mode = ixgbe_fc_none;
595 hw->fc.fc_was_autonegged = false;
603 * ixgbe_setup_mac_link_speed_82598 - Set MAC link speed
604 * @hw: pointer to hardware structure
605 * @speed: new link speed
606 * @autoneg: true if auto-negotiation enabled
607 * @autoneg_wait_to_complete: true if waiting is needed to complete
609 * Set the link speed in the AUTOC register and restarts link.
611 static s32 ixgbe_setup_mac_link_speed_82598(struct ixgbe_hw *hw,
612 ixgbe_link_speed speed, bool autoneg,
613 bool autoneg_wait_to_complete)
616 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
617 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
618 u32 autoc = curr_autoc;
619 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
621 /* Check to see if speed passed in is supported. */
622 ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
623 speed &= link_capabilities;
625 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
626 status = IXGBE_ERR_LINK_SETUP;
628 /* Set KX4/KX support according to speed requested */
629 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
630 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
631 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
632 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
633 autoc |= IXGBE_AUTOC_KX4_SUPP;
634 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
635 autoc |= IXGBE_AUTOC_KX_SUPP;
636 if (autoc != curr_autoc)
637 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
641 hw->phy.autoneg_wait_to_complete = autoneg_wait_to_complete;
644 * Setup and restart the link based on the new values in
645 * ixgbe_hw This will write the AUTOC register based on the new
648 status = ixgbe_setup_mac_link_82598(hw);
656 * ixgbe_setup_copper_link_82598 - Setup copper link settings
657 * @hw: pointer to hardware structure
659 * Configures link settings based on values in the ixgbe_hw struct.
660 * Restarts the link. Performs autonegotiation if needed. Restart
661 * phy and wait for autonegotiate to finish. Then synchronize the
664 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw)
668 /* Restart autonegotiation on PHY */
669 status = hw->phy.ops.setup_link(hw);
672 ixgbe_setup_mac_link_82598(hw);
678 * ixgbe_setup_copper_link_speed_82598 - Set the PHY autoneg advertised field
679 * @hw: pointer to hardware structure
680 * @speed: new link speed
681 * @autoneg: true if autonegotiation enabled
682 * @autoneg_wait_to_complete: true if waiting is needed to complete
684 * Sets the link speed in the AUTOC register in the MAC and restarts link.
686 static s32 ixgbe_setup_copper_link_speed_82598(struct ixgbe_hw *hw,
687 ixgbe_link_speed speed,
689 bool autoneg_wait_to_complete)
693 /* Setup the PHY according to input speed */
694 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
695 autoneg_wait_to_complete);
698 ixgbe_setup_mac_link_82598(hw);
704 * ixgbe_reset_hw_82598 - Performs hardware reset
705 * @hw: pointer to hardware structure
707 * Resets the hardware by resetting the transmit and receive units, masks and
708 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
711 static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
721 /* Call adapter stop to disable tx/rx and clear interrupts */
722 hw->mac.ops.stop_adapter(hw);
725 * Power up the Atlas Tx lanes if they are currently powered down.
726 * Atlas Tx lanes are powered down for MAC loopback tests, but
727 * they are not automatically restored on reset.
729 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
730 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
731 /* Enable Tx Atlas so packets can be transmitted again */
732 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
734 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
735 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
738 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
740 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
741 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
744 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
746 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
747 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
750 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
752 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
753 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
758 if (hw->phy.reset_disable == false) {
759 /* PHY ops must be identified and initialized prior to reset */
761 /* Init PHY and function pointers, perform SFP setup */
762 phy_status = hw->phy.ops.init(hw);
763 if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
765 else if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
769 hw->phy.ops.reset(hw);
774 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
775 * access and verify no pending requests before reset
777 status = ixgbe_disable_pcie_master(hw);
779 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
780 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
784 * Issue global reset to the MAC. This needs to be a SW reset.
785 * If link reset is used, it might reset the MAC when mng is using it
787 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
788 IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
789 IXGBE_WRITE_FLUSH(hw);
791 /* Poll for reset bit to self-clear indicating reset is complete */
792 for (i = 0; i < 10; i++) {
794 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
795 if (!(ctrl & IXGBE_CTRL_RST))
798 if (ctrl & IXGBE_CTRL_RST) {
799 status = IXGBE_ERR_RESET_FAILED;
800 hw_dbg(hw, "Reset polling failed to complete.\n");
805 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
806 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
807 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
810 * Store the original AUTOC value if it has not been
811 * stored off yet. Otherwise restore the stored original
812 * AUTOC value since the reset operation sets back to deaults.
814 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
815 if (hw->mac.orig_link_settings_stored == false) {
816 hw->mac.orig_autoc = autoc;
817 hw->mac.orig_link_settings_stored = true;
818 } else if (autoc != hw->mac.orig_autoc) {
819 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
823 * Store MAC address from RAR0, clear receive address registers, and
824 * clear the multicast table
826 hw->mac.ops.init_rx_addrs(hw);
828 /* Store the permanent mac address */
829 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
839 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
840 * @hw: pointer to hardware struct
841 * @rar: receive address register index to associate with a VMDq index
842 * @vmdq: VMDq set index
844 static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
848 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
849 rar_high &= ~IXGBE_RAH_VIND_MASK;
850 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
851 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
856 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
857 * @hw: pointer to hardware struct
858 * @rar: receive address register index to associate with a VMDq index
859 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
861 static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
864 u32 rar_entries = hw->mac.num_rar_entries;
866 if (rar < rar_entries) {
867 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
868 if (rar_high & IXGBE_RAH_VIND_MASK) {
869 rar_high &= ~IXGBE_RAH_VIND_MASK;
870 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
873 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
880 * ixgbe_set_vfta_82598 - Set VLAN filter table
881 * @hw: pointer to hardware structure
882 * @vlan: VLAN id to write to VLAN filter
883 * @vind: VMDq output index that maps queue to VLAN id in VFTA
884 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
886 * Turn on/off specified VLAN in the VLAN filter table.
888 static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
897 return IXGBE_ERR_PARAM;
899 /* Determine 32-bit word position in array */
900 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
902 /* Determine the location of the (VMD) queue index */
903 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
904 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
906 /* Set the nibble for VMD queue index */
907 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
908 bits &= (~(0x0F << bitindex));
909 bits |= (vind << bitindex);
910 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
912 /* Determine the location of the bit for this VLAN id */
913 bitindex = vlan & 0x1F; /* lower five bits */
915 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
917 /* Turn on this VLAN id */
918 bits |= (1 << bitindex);
920 /* Turn off this VLAN id */
921 bits &= ~(1 << bitindex);
922 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
928 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
929 * @hw: pointer to hardware structure
931 * Clears the VLAN filer table, and the VMDq index associated with the filter
933 static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
938 for (offset = 0; offset < hw->mac.vft_size; offset++)
939 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
941 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
942 for (offset = 0; offset < hw->mac.vft_size; offset++)
943 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
950 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
951 * @hw: pointer to hardware structure
952 * @reg: analog register to read
955 * Performs read operation to Atlas analog register specified.
957 static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
961 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
962 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
963 IXGBE_WRITE_FLUSH(hw);
965 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
966 *val = (u8)atlas_ctl;
972 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
973 * @hw: pointer to hardware structure
974 * @reg: atlas register to write
975 * @val: value to write
977 * Performs write operation to Atlas analog register specified.
979 static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
983 atlas_ctl = (reg << 8) | val;
984 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
985 IXGBE_WRITE_FLUSH(hw);
992 * ixgbe_read_i2c_eeprom_82598 - Read 8 bit EEPROM word of an SFP+ module
993 * over I2C interface through an intermediate phy.
994 * @hw: pointer to hardware structure
995 * @byte_offset: EEPROM byte offset to read
996 * @eeprom_data: value read
998 * Performs byte read operation to SFP module's EEPROM over I2C interface.
1000 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1009 if (hw->phy.type == ixgbe_phy_nl) {
1011 * phy SDA/SCL registers are at addresses 0xC30A to
1012 * 0xC30D. These registers are used to talk to the SFP+
1013 * module's EEPROM through the SDA/SCL (I2C) interface.
1015 sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
1016 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1017 hw->phy.ops.write_reg(hw,
1018 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1023 for (i = 0; i < 100; i++) {
1024 hw->phy.ops.read_reg(hw,
1025 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1028 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1029 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1034 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1035 hw_dbg(hw, "EEPROM read did not pass.\n");
1036 status = IXGBE_ERR_SFP_NOT_PRESENT;
1041 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1042 MDIO_MMD_PMAPMD, &sfp_data);
1044 *eeprom_data = (u8)(sfp_data >> 8);
1046 status = IXGBE_ERR_PHY;
1055 * ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
1056 * @hw: pointer to hardware structure
1058 * Determines physical layer capabilities of the current configuration.
1060 static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
1062 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1063 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1064 u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
1065 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1066 u16 ext_ability = 0;
1068 hw->phy.ops.identify(hw);
1070 /* Copper PHY must be checked before AUTOC LMS to determine correct
1071 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
1072 if (hw->phy.type == ixgbe_phy_tn ||
1073 hw->phy.type == ixgbe_phy_cu_unknown) {
1074 hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE, MDIO_MMD_PMAPMD,
1076 if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
1077 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
1078 if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
1079 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
1080 if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
1081 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
1085 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
1086 case IXGBE_AUTOC_LMS_1G_AN:
1087 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
1088 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
1089 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1091 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
1093 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
1094 if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
1095 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1096 else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
1097 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1099 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1101 case IXGBE_AUTOC_LMS_KX4_AN:
1102 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
1103 if (autoc & IXGBE_AUTOC_KX_SUPP)
1104 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1105 if (autoc & IXGBE_AUTOC_KX4_SUPP)
1106 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1112 if (hw->phy.type == ixgbe_phy_nl) {
1113 hw->phy.ops.identify_sfp(hw);
1115 switch (hw->phy.sfp_type) {
1116 case ixgbe_sfp_type_da_cu:
1117 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1119 case ixgbe_sfp_type_sr:
1120 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1122 case ixgbe_sfp_type_lr:
1123 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1126 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1131 switch (hw->device_id) {
1132 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
1133 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1135 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
1136 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
1137 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
1138 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1140 case IXGBE_DEV_ID_82598EB_XF_LR:
1141 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1148 return physical_layer;
1151 static struct ixgbe_mac_operations mac_ops_82598 = {
1152 .init_hw = &ixgbe_init_hw_generic,
1153 .reset_hw = &ixgbe_reset_hw_82598,
1154 .start_hw = &ixgbe_start_hw_82598,
1155 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
1156 .get_media_type = &ixgbe_get_media_type_82598,
1157 .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
1158 .enable_rx_dma = &ixgbe_enable_rx_dma_generic,
1159 .get_mac_addr = &ixgbe_get_mac_addr_generic,
1160 .stop_adapter = &ixgbe_stop_adapter_generic,
1161 .get_bus_info = &ixgbe_get_bus_info_generic,
1162 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
1163 .read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
1164 .write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
1165 .setup_link = &ixgbe_setup_mac_link_82598,
1166 .setup_link_speed = &ixgbe_setup_mac_link_speed_82598,
1167 .check_link = &ixgbe_check_mac_link_82598,
1168 .get_link_capabilities = &ixgbe_get_link_capabilities_82598,
1169 .led_on = &ixgbe_led_on_generic,
1170 .led_off = &ixgbe_led_off_generic,
1171 .blink_led_start = &ixgbe_blink_led_start_generic,
1172 .blink_led_stop = &ixgbe_blink_led_stop_generic,
1173 .set_rar = &ixgbe_set_rar_generic,
1174 .clear_rar = &ixgbe_clear_rar_generic,
1175 .set_vmdq = &ixgbe_set_vmdq_82598,
1176 .clear_vmdq = &ixgbe_clear_vmdq_82598,
1177 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
1178 .update_uc_addr_list = &ixgbe_update_uc_addr_list_generic,
1179 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
1180 .enable_mc = &ixgbe_enable_mc_generic,
1181 .disable_mc = &ixgbe_disable_mc_generic,
1182 .clear_vfta = &ixgbe_clear_vfta_82598,
1183 .set_vfta = &ixgbe_set_vfta_82598,
1184 .fc_enable = &ixgbe_fc_enable_82598,
1187 static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1188 .init_params = &ixgbe_init_eeprom_params_generic,
1189 .read = &ixgbe_read_eeprom_generic,
1190 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
1191 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
1194 static struct ixgbe_phy_operations phy_ops_82598 = {
1195 .identify = &ixgbe_identify_phy_generic,
1196 .identify_sfp = &ixgbe_identify_sfp_module_generic,
1197 .init = &ixgbe_init_phy_ops_82598,
1198 .reset = &ixgbe_reset_phy_generic,
1199 .read_reg = &ixgbe_read_phy_reg_generic,
1200 .write_reg = &ixgbe_write_phy_reg_generic,
1201 .setup_link = &ixgbe_setup_phy_link_generic,
1202 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
1203 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
1206 struct ixgbe_info ixgbe_82598_info = {
1207 .mac = ixgbe_mac_82598EB,
1208 .get_invariants = &ixgbe_get_invariants_82598,
1209 .mac_ops = &mac_ops_82598,
1210 .eeprom_ops = &eeprom_ops_82598,
1211 .phy_ops = &phy_ops_82598,