1 /*******************************************************************************
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2007 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 *******************************************************************************/
30 * 82571EB Gigabit Ethernet Controller
31 * 82571EB Gigabit Ethernet Controller (Fiber)
32 * 82572EI Gigabit Ethernet Controller (Copper)
33 * 82572EI Gigabit Ethernet Controller (Fiber)
34 * 82572EI Gigabit Ethernet Controller
35 * 82573V Gigabit Ethernet Controller (Copper)
36 * 82573E Gigabit Ethernet Controller (Copper)
37 * 82573L Gigabit Ethernet Controller
40 #include <linux/netdevice.h>
41 #include <linux/delay.h>
42 #include <linux/pci.h>
46 #define ID_LED_RESERVED_F746 0xF746
47 #define ID_LED_DEFAULT_82573 ((ID_LED_DEF1_DEF2 << 12) | \
48 (ID_LED_OFF1_ON2 << 8) | \
49 (ID_LED_DEF1_DEF2 << 4) | \
52 #define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
54 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
55 static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
56 static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
57 static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
58 u16 words, u16 *data);
59 static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
60 static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
61 static s32 e1000_setup_link_82571(struct e1000_hw *hw);
62 static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
65 * e1000_init_phy_params_82571 - Init PHY func ptrs.
66 * @hw: pointer to the HW structure
68 * This is a function pointer entry point called by the api module.
70 static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
72 struct e1000_phy_info *phy = &hw->phy;
75 if (hw->media_type != e1000_media_type_copper) {
76 phy->type = e1000_phy_none;
81 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
82 phy->reset_delay_us = 100;
84 switch (hw->mac.type) {
87 phy->type = e1000_phy_igp_2;
90 phy->type = e1000_phy_m88;
93 return -E1000_ERR_PHY;
97 /* This can only be done after all function pointers are setup. */
98 ret_val = e1000_get_phy_id_82571(hw);
101 switch (hw->mac.type) {
104 if (phy->id != IGP01E1000_I_PHY_ID)
105 return -E1000_ERR_PHY;
108 if (phy->id != M88E1111_I_PHY_ID)
109 return -E1000_ERR_PHY;
112 return -E1000_ERR_PHY;
120 * e1000_init_nvm_params_82571 - Init NVM func ptrs.
121 * @hw: pointer to the HW structure
123 * This is a function pointer entry point called by the api module.
125 static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
127 struct e1000_nvm_info *nvm = &hw->nvm;
128 u32 eecd = er32(EECD);
131 nvm->opcode_bits = 8;
133 switch (nvm->override) {
134 case e1000_nvm_override_spi_large:
136 nvm->address_bits = 16;
138 case e1000_nvm_override_spi_small:
140 nvm->address_bits = 8;
143 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
144 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
148 switch (hw->mac.type) {
150 if (((eecd >> 15) & 0x3) == 0x3) {
151 nvm->type = e1000_nvm_flash_hw;
152 nvm->word_size = 2048;
153 /* Autonomous Flash update bit must be cleared due
154 * to Flash update issue.
156 eecd &= ~E1000_EECD_AUPDEN;
162 nvm->type = e1000_nvm_eeprom_spi;
163 size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
164 E1000_EECD_SIZE_EX_SHIFT);
165 /* Added to a constant, "size" becomes the left-shift value
166 * for setting word_size.
168 size += NVM_WORD_SIZE_BASE_SHIFT;
169 nvm->word_size = 1 << size;
177 * e1000_init_mac_params_82571 - Init MAC func ptrs.
178 * @hw: pointer to the HW structure
180 * This is a function pointer entry point called by the api module.
182 static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
184 struct e1000_hw *hw = &adapter->hw;
185 struct e1000_mac_info *mac = &hw->mac;
186 struct e1000_mac_operations *func = &mac->ops;
189 switch (adapter->pdev->device) {
190 case E1000_DEV_ID_82571EB_FIBER:
191 case E1000_DEV_ID_82572EI_FIBER:
192 case E1000_DEV_ID_82571EB_QUAD_FIBER:
193 hw->media_type = e1000_media_type_fiber;
195 case E1000_DEV_ID_82571EB_SERDES:
196 case E1000_DEV_ID_82572EI_SERDES:
197 hw->media_type = e1000_media_type_internal_serdes;
200 hw->media_type = e1000_media_type_copper;
204 /* Set mta register count */
205 mac->mta_reg_count = 128;
206 /* Set rar entry count */
207 mac->rar_entry_count = E1000_RAR_ENTRIES;
208 /* Set if manageability features are enabled. */
209 mac->arc_subsystem_valid =
210 (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0;
213 switch (hw->media_type) {
214 case e1000_media_type_copper:
215 func->setup_physical_interface = e1000_setup_copper_link_82571;
216 func->check_for_link = e1000e_check_for_copper_link;
217 func->get_link_up_info = e1000e_get_speed_and_duplex_copper;
219 case e1000_media_type_fiber:
220 func->setup_physical_interface = e1000_setup_fiber_serdes_link_82571;
221 func->check_for_link = e1000e_check_for_fiber_link;
222 func->get_link_up_info = e1000e_get_speed_and_duplex_fiber_serdes;
224 case e1000_media_type_internal_serdes:
225 func->setup_physical_interface = e1000_setup_fiber_serdes_link_82571;
226 func->check_for_link = e1000e_check_for_serdes_link;
227 func->get_link_up_info = e1000e_get_speed_and_duplex_fiber_serdes;
230 return -E1000_ERR_CONFIG;
237 static s32 e1000_get_invariants_82571(struct e1000_adapter *adapter)
239 struct e1000_hw *hw = &adapter->hw;
240 static int global_quad_port_a; /* global port a indication */
241 struct pci_dev *pdev = adapter->pdev;
243 int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
246 rc = e1000_init_mac_params_82571(adapter);
250 rc = e1000_init_nvm_params_82571(hw);
254 rc = e1000_init_phy_params_82571(hw);
258 /* tag quad port adapters first, it's used below */
259 switch (pdev->device) {
260 case E1000_DEV_ID_82571EB_QUAD_COPPER:
261 case E1000_DEV_ID_82571EB_QUAD_FIBER:
262 case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
263 adapter->flags |= FLAG_IS_QUAD_PORT;
264 /* mark the first port */
265 if (global_quad_port_a == 0)
266 adapter->flags |= FLAG_IS_QUAD_PORT_A;
267 /* Reset for multiple quad port adapters */
268 global_quad_port_a++;
269 if (global_quad_port_a == 4)
270 global_quad_port_a = 0;
276 switch (adapter->hw.mac.type) {
278 /* these dual ports don't have WoL on port B at all */
279 if (((pdev->device == E1000_DEV_ID_82571EB_FIBER) ||
280 (pdev->device == E1000_DEV_ID_82571EB_SERDES) ||
281 (pdev->device == E1000_DEV_ID_82571EB_COPPER)) &&
283 adapter->flags &= ~FLAG_HAS_WOL;
284 /* quad ports only support WoL on port A */
285 if (adapter->flags & FLAG_IS_QUAD_PORT &&
286 (!(adapter->flags & FLAG_IS_QUAD_PORT_A)))
287 adapter->flags &= ~FLAG_HAS_WOL;
291 if (pdev->device == E1000_DEV_ID_82573L) {
292 e1000_read_nvm(&adapter->hw, NVM_INIT_3GIO_3, 1,
294 if (eeprom_data & NVM_WORD1A_ASPM_MASK)
295 adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
306 * e1000_get_phy_id_82571 - Retrieve the PHY ID and revision
307 * @hw: pointer to the HW structure
309 * Reads the PHY registers and stores the PHY ID and possibly the PHY
310 * revision in the hardware structure.
312 static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
314 struct e1000_phy_info *phy = &hw->phy;
316 switch (hw->mac.type) {
319 /* The 82571 firmware may still be configuring the PHY.
320 * In this case, we cannot access the PHY until the
321 * configuration is done. So we explicitly set the
323 phy->id = IGP01E1000_I_PHY_ID;
326 return e1000e_get_phy_id(hw);
329 return -E1000_ERR_PHY;
337 * e1000_get_hw_semaphore_82571 - Acquire hardware semaphore
338 * @hw: pointer to the HW structure
340 * Acquire the HW semaphore to access the PHY or NVM
342 static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw)
345 s32 timeout = hw->nvm.word_size + 1;
348 /* Get the FW semaphore. */
349 for (i = 0; i < timeout; i++) {
351 ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
353 /* Semaphore acquired if bit latched */
354 if (er32(SWSM) & E1000_SWSM_SWESMBI)
361 /* Release semaphores */
362 e1000e_put_hw_semaphore(hw);
363 hw_dbg(hw, "Driver can't access the NVM\n");
364 return -E1000_ERR_NVM;
371 * e1000_put_hw_semaphore_82571 - Release hardware semaphore
372 * @hw: pointer to the HW structure
374 * Release hardware semaphore used to access the PHY or NVM
376 static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw)
382 swsm &= ~E1000_SWSM_SWESMBI;
388 * e1000_acquire_nvm_82571 - Request for access to the EEPROM
389 * @hw: pointer to the HW structure
391 * To gain access to the EEPROM, first we must obtain a hardware semaphore.
392 * Then for non-82573 hardware, set the EEPROM access request bit and wait
393 * for EEPROM access grant bit. If the access grant bit is not set, release
394 * hardware semaphore.
396 static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw)
400 ret_val = e1000_get_hw_semaphore_82571(hw);
404 if (hw->mac.type != e1000_82573)
405 ret_val = e1000e_acquire_nvm(hw);
408 e1000_put_hw_semaphore_82571(hw);
414 * e1000_release_nvm_82571 - Release exclusive access to EEPROM
415 * @hw: pointer to the HW structure
417 * Stop any current commands to the EEPROM and clear the EEPROM request bit.
419 static void e1000_release_nvm_82571(struct e1000_hw *hw)
421 e1000e_release_nvm(hw);
422 e1000_put_hw_semaphore_82571(hw);
426 * e1000_write_nvm_82571 - Write to EEPROM using appropriate interface
427 * @hw: pointer to the HW structure
428 * @offset: offset within the EEPROM to be written to
429 * @words: number of words to write
430 * @data: 16 bit word(s) to be written to the EEPROM
432 * For non-82573 silicon, write data to EEPROM at offset using SPI interface.
434 * If e1000e_update_nvm_checksum is not called after this function, the
435 * EEPROM will most likley contain an invalid checksum.
437 static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words,
442 switch (hw->mac.type) {
444 ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
448 ret_val = e1000e_write_nvm_spi(hw, offset, words, data);
451 ret_val = -E1000_ERR_NVM;
459 * e1000_update_nvm_checksum_82571 - Update EEPROM checksum
460 * @hw: pointer to the HW structure
462 * Updates the EEPROM checksum by reading/adding each word of the EEPROM
463 * up to the checksum. Then calculates the EEPROM checksum and writes the
464 * value to the EEPROM.
466 static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw)
472 ret_val = e1000e_update_nvm_checksum_generic(hw);
476 /* If our nvm is an EEPROM, then we're done
477 * otherwise, commit the checksum to the flash NVM. */
478 if (hw->nvm.type != e1000_nvm_flash_hw)
481 /* Check for pending operations. */
482 for (i = 0; i < E1000_FLASH_UPDATES; i++) {
484 if ((er32(EECD) & E1000_EECD_FLUPD) == 0)
488 if (i == E1000_FLASH_UPDATES)
489 return -E1000_ERR_NVM;
491 /* Reset the firmware if using STM opcode. */
492 if ((er32(FLOP) & 0xFF00) == E1000_STM_OPCODE) {
493 /* The enabling of and the actual reset must be done
494 * in two write cycles.
496 ew32(HICR, E1000_HICR_FW_RESET_ENABLE);
498 ew32(HICR, E1000_HICR_FW_RESET);
501 /* Commit the write to flash */
502 eecd = er32(EECD) | E1000_EECD_FLUPD;
505 for (i = 0; i < E1000_FLASH_UPDATES; i++) {
507 if ((er32(EECD) & E1000_EECD_FLUPD) == 0)
511 if (i == E1000_FLASH_UPDATES)
512 return -E1000_ERR_NVM;
518 * e1000_validate_nvm_checksum_82571 - Validate EEPROM checksum
519 * @hw: pointer to the HW structure
521 * Calculates the EEPROM checksum by reading/adding each word of the EEPROM
522 * and then verifies that the sum of the EEPROM is equal to 0xBABA.
524 static s32 e1000_validate_nvm_checksum_82571(struct e1000_hw *hw)
526 if (hw->nvm.type == e1000_nvm_flash_hw)
527 e1000_fix_nvm_checksum_82571(hw);
529 return e1000e_validate_nvm_checksum_generic(hw);
533 * e1000_write_nvm_eewr_82571 - Write to EEPROM for 82573 silicon
534 * @hw: pointer to the HW structure
535 * @offset: offset within the EEPROM to be written to
536 * @words: number of words to write
537 * @data: 16 bit word(s) to be written to the EEPROM
539 * After checking for invalid values, poll the EEPROM to ensure the previous
540 * command has completed before trying to write the next word. After write
541 * poll for completion.
543 * If e1000e_update_nvm_checksum is not called after this function, the
544 * EEPROM will most likley contain an invalid checksum.
546 static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
547 u16 words, u16 *data)
549 struct e1000_nvm_info *nvm = &hw->nvm;
554 /* A check for invalid values: offset too large, too many words,
555 * and not enough words. */
556 if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
558 hw_dbg(hw, "nvm parameter(s) out of bounds\n");
559 return -E1000_ERR_NVM;
562 for (i = 0; i < words; i++) {
563 eewr = (data[i] << E1000_NVM_RW_REG_DATA) |
564 ((offset+i) << E1000_NVM_RW_ADDR_SHIFT) |
565 E1000_NVM_RW_REG_START;
567 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
573 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
582 * e1000_get_cfg_done_82571 - Poll for configuration done
583 * @hw: pointer to the HW structure
585 * Reads the management control register for the config done bit to be set.
587 static s32 e1000_get_cfg_done_82571(struct e1000_hw *hw)
589 s32 timeout = PHY_CFG_TIMEOUT;
593 E1000_NVM_CFG_DONE_PORT_0)
599 hw_dbg(hw, "MNG configuration cycle has not completed.\n");
600 return -E1000_ERR_RESET;
607 * e1000_set_d0_lplu_state_82571 - Set Low Power Linkup D0 state
608 * @hw: pointer to the HW structure
609 * @active: TRUE to enable LPLU, FALSE to disable
611 * Sets the LPLU D0 state according to the active flag. When activating LPLU
612 * this function also disables smart speed and vice versa. LPLU will not be
613 * activated unless the device autonegotiation advertisement meets standards
614 * of either 10 or 10/100 or 10/100/1000 at all duplexes. This is a function
615 * pointer entry point only called by PHY setup routines.
617 static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active)
619 struct e1000_phy_info *phy = &hw->phy;
623 ret_val = e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &data);
628 data |= IGP02E1000_PM_D0_LPLU;
629 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
633 /* When LPLU is enabled, we should disable SmartSpeed */
634 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
635 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
636 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
640 data &= ~IGP02E1000_PM_D0_LPLU;
641 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
642 /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
643 * during Dx states where the power conservation is most
644 * important. During driver activity we should enable
645 * SmartSpeed, so performance is maintained. */
646 if (phy->smart_speed == e1000_smart_speed_on) {
647 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
652 data |= IGP01E1000_PSCFR_SMART_SPEED;
653 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
657 } else if (phy->smart_speed == e1000_smart_speed_off) {
658 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
663 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
664 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
675 * e1000_reset_hw_82571 - Reset hardware
676 * @hw: pointer to the HW structure
678 * This resets the hardware into a known state. This is a
679 * function pointer entry point called by the api module.
681 static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
690 /* Prevent the PCI-E bus from sticking if there is no TLP connection
691 * on the last TLP read/write transaction when MAC is reset.
693 ret_val = e1000e_disable_pcie_master(hw);
695 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
697 hw_dbg(hw, "Masking off all interrupts\n");
698 ew32(IMC, 0xffffffff);
701 ew32(TCTL, E1000_TCTL_PSP);
706 /* Must acquire the MDIO ownership before MAC reset.
707 * Ownership defaults to firmware after a reset. */
708 if (hw->mac.type == e1000_82573) {
709 extcnf_ctrl = er32(EXTCNF_CTRL);
710 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
713 ew32(EXTCNF_CTRL, extcnf_ctrl);
714 extcnf_ctrl = er32(EXTCNF_CTRL);
716 if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP)
719 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
723 } while (i < MDIO_OWNERSHIP_TIMEOUT);
728 hw_dbg(hw, "Issuing a global reset to MAC\n");
729 ew32(CTRL, ctrl | E1000_CTRL_RST);
731 if (hw->nvm.type == e1000_nvm_flash_hw) {
733 ctrl_ext = er32(CTRL_EXT);
734 ctrl_ext |= E1000_CTRL_EXT_EE_RST;
735 ew32(CTRL_EXT, ctrl_ext);
739 ret_val = e1000e_get_auto_rd_done(hw);
741 /* We don't want to continue accessing MAC registers. */
744 /* Phy configuration from NVM just starts after EECD_AUTO_RD is set.
745 * Need to wait for Phy configuration completion before accessing
748 if (hw->mac.type == e1000_82573)
751 /* Clear any pending interrupt events. */
752 ew32(IMC, 0xffffffff);
759 * e1000_init_hw_82571 - Initialize hardware
760 * @hw: pointer to the HW structure
762 * This inits the hardware readying it for operation.
764 static s32 e1000_init_hw_82571(struct e1000_hw *hw)
766 struct e1000_mac_info *mac = &hw->mac;
770 u16 rar_count = mac->rar_entry_count;
772 e1000_initialize_hw_bits_82571(hw);
774 /* Initialize identification LED */
775 ret_val = e1000e_id_led_init(hw);
777 hw_dbg(hw, "Error initializing identification LED\n");
781 /* Disabling VLAN filtering */
782 hw_dbg(hw, "Initializing the IEEE VLAN\n");
783 e1000e_clear_vfta(hw);
785 /* Setup the receive address. */
786 /* If, however, a locally administered address was assigned to the
787 * 82571, we must reserve a RAR for it to work around an issue where
788 * resetting one port will reload the MAC on the other port.
790 if (e1000e_get_laa_state_82571(hw))
792 e1000e_init_rx_addrs(hw, rar_count);
794 /* Zero out the Multicast HASH table */
795 hw_dbg(hw, "Zeroing the MTA\n");
796 for (i = 0; i < mac->mta_reg_count; i++)
797 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
799 /* Setup link and flow control */
800 ret_val = e1000_setup_link_82571(hw);
802 /* Set the transmit descriptor write-back policy */
803 reg_data = er32(TXDCTL);
804 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
805 E1000_TXDCTL_FULL_TX_DESC_WB |
806 E1000_TXDCTL_COUNT_DESC;
807 ew32(TXDCTL, reg_data);
809 /* ...for both queues. */
810 if (mac->type != e1000_82573) {
811 reg_data = er32(TXDCTL1);
812 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
813 E1000_TXDCTL_FULL_TX_DESC_WB |
814 E1000_TXDCTL_COUNT_DESC;
815 ew32(TXDCTL1, reg_data);
817 e1000e_enable_tx_pkt_filtering(hw);
818 reg_data = er32(GCR);
819 reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
823 /* Clear all of the statistics registers (clear on read). It is
824 * important that we do this after we have tried to establish link
825 * because the symbol error count will increment wildly if there
828 e1000_clear_hw_cntrs_82571(hw);
834 * e1000_initialize_hw_bits_82571 - Initialize hardware-dependent bits
835 * @hw: pointer to the HW structure
837 * Initializes required hardware-dependent bits needed for normal operation.
839 static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
843 /* Transmit Descriptor Control 0 */
848 /* Transmit Descriptor Control 1 */
853 /* Transmit Arbitration Control 0 */
855 reg &= ~(0xF << 27); /* 30:27 */
856 switch (hw->mac.type) {
859 reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26);
866 /* Transmit Arbitration Control 1 */
868 switch (hw->mac.type) {
871 reg &= ~((1 << 29) | (1 << 30));
872 reg |= (1 << 22) | (1 << 24) | (1 << 25) | (1 << 26);
873 if (er32(TCTL) & E1000_TCTL_MULR)
884 if (hw->mac.type == e1000_82573) {
890 /* Extended Device Control */
891 if (hw->mac.type == e1000_82573) {
892 reg = er32(CTRL_EXT);
900 * e1000e_clear_vfta - Clear VLAN filter table
901 * @hw: pointer to the HW structure
903 * Clears the register array which contains the VLAN filter table by
904 * setting all the values to 0.
906 void e1000e_clear_vfta(struct e1000_hw *hw)
911 u32 vfta_bit_in_reg = 0;
913 if (hw->mac.type == e1000_82573) {
914 if (hw->mng_cookie.vlan_id != 0) {
915 /* The VFTA is a 4096b bit-field, each identifying
916 * a single VLAN ID. The following operations
917 * determine which 32b entry (i.e. offset) into the
918 * array we want to set the VLAN ID (i.e. bit) of
919 * the manageability unit.
921 vfta_offset = (hw->mng_cookie.vlan_id >>
922 E1000_VFTA_ENTRY_SHIFT) &
923 E1000_VFTA_ENTRY_MASK;
924 vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id &
925 E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
928 for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
929 /* If the offset we want to clear is the same offset of the
930 * manageability VLAN ID, then clear all bits except that of
931 * the manageability unit.
933 vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0;
934 E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, vfta_value);
940 * e1000_mc_addr_list_update_82571 - Update Multicast addresses
941 * @hw: pointer to the HW structure
942 * @mc_addr_list: array of multicast addresses to program
943 * @mc_addr_count: number of multicast addresses to program
944 * @rar_used_count: the first RAR register free to program
945 * @rar_count: total number of supported Receive Address Registers
947 * Updates the Receive Address Registers and Multicast Table Array.
948 * The caller must have a packed mc_addr_list of multicast addresses.
949 * The parameter rar_count will usually be hw->mac.rar_entry_count
950 * unless there are workarounds that change this.
952 static void e1000_mc_addr_list_update_82571(struct e1000_hw *hw,
958 if (e1000e_get_laa_state_82571(hw))
961 e1000e_mc_addr_list_update_generic(hw, mc_addr_list, mc_addr_count,
962 rar_used_count, rar_count);
966 * e1000_setup_link_82571 - Setup flow control and link settings
967 * @hw: pointer to the HW structure
969 * Determines which flow control settings to use, then configures flow
970 * control. Calls the appropriate media-specific link configuration
971 * function. Assuming the adapter has a valid link partner, a valid link
972 * should be established. Assumes the hardware has previously been reset
973 * and the transmitter and receiver are not enabled.
975 static s32 e1000_setup_link_82571(struct e1000_hw *hw)
977 /* 82573 does not have a word in the NVM to determine
978 * the default flow control setting, so we explicitly
981 if (hw->mac.type == e1000_82573)
982 hw->mac.fc = e1000_fc_full;
984 return e1000e_setup_link(hw);
988 * e1000_setup_copper_link_82571 - Configure copper link settings
989 * @hw: pointer to the HW structure
991 * Configures the link for auto-neg or forced speed and duplex. Then we check
992 * for link, once link is established calls to configure collision distance
993 * and flow control are called.
995 static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw)
1002 ctrl |= E1000_CTRL_SLU;
1003 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1006 switch (hw->phy.type) {
1008 ret_val = e1000e_copper_link_setup_m88(hw);
1010 case e1000_phy_igp_2:
1011 ret_val = e1000e_copper_link_setup_igp(hw);
1012 /* Setup activity LED */
1013 led_ctrl = er32(LEDCTL);
1014 led_ctrl &= IGP_ACTIVITY_LED_MASK;
1015 led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
1016 ew32(LEDCTL, led_ctrl);
1019 return -E1000_ERR_PHY;
1026 ret_val = e1000e_setup_copper_link(hw);
1032 * e1000_setup_fiber_serdes_link_82571 - Setup link for fiber/serdes
1033 * @hw: pointer to the HW structure
1035 * Configures collision distance and flow control for fiber and serdes links.
1036 * Upon successful setup, poll for link.
1038 static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw)
1040 switch (hw->mac.type) {
1043 /* If SerDes loopback mode is entered, there is no form
1044 * of reset to take the adapter out of that mode. So we
1045 * have to explicitly take the adapter out of loopback
1046 * mode. This prevents drivers from twidling their thumbs
1047 * if another tool failed to take it out of loopback mode.
1050 E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1056 return e1000e_setup_fiber_serdes_link(hw);
1060 * e1000_valid_led_default_82571 - Verify a valid default LED config
1061 * @hw: pointer to the HW structure
1062 * @data: pointer to the NVM (EEPROM)
1064 * Read the EEPROM for the current default LED configuration. If the
1065 * LED configuration is not valid, set to a valid LED configuration.
1067 static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data)
1071 ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
1073 hw_dbg(hw, "NVM Read Error\n");
1077 if (hw->mac.type == e1000_82573 &&
1078 *data == ID_LED_RESERVED_F746)
1079 *data = ID_LED_DEFAULT_82573;
1080 else if (*data == ID_LED_RESERVED_0000 ||
1081 *data == ID_LED_RESERVED_FFFF)
1082 *data = ID_LED_DEFAULT;
1088 * e1000e_get_laa_state_82571 - Get locally administered address state
1089 * @hw: pointer to the HW structure
1091 * Retrieve and return the current locally administed address state.
1093 bool e1000e_get_laa_state_82571(struct e1000_hw *hw)
1095 if (hw->mac.type != e1000_82571)
1098 return hw->dev_spec.e82571.laa_is_present;
1102 * e1000e_set_laa_state_82571 - Set locally administered address state
1103 * @hw: pointer to the HW structure
1104 * @state: enable/disable locally administered address
1106 * Enable/Disable the current locally administed address state.
1108 void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state)
1110 if (hw->mac.type != e1000_82571)
1113 hw->dev_spec.e82571.laa_is_present = state;
1115 /* If workaround is activated... */
1117 /* Hold a copy of the LAA in RAR[14] This is done so that
1118 * between the time RAR[0] gets clobbered and the time it
1119 * gets fixed, the actual LAA is in one of the RARs and no
1120 * incoming packets directed to this port are dropped.
1121 * Eventually the LAA will be in RAR[0] and RAR[14].
1123 e1000e_rar_set(hw, hw->mac.addr, hw->mac.rar_entry_count - 1);
1127 * e1000_fix_nvm_checksum_82571 - Fix EEPROM checksum
1128 * @hw: pointer to the HW structure
1130 * Verifies that the EEPROM has completed the update. After updating the
1131 * EEPROM, we need to check bit 15 in work 0x23 for the checksum fix. If
1132 * the checksum fix is not implemented, we need to set the bit and update
1133 * the checksum. Otherwise, if bit 15 is set and the checksum is incorrect,
1134 * we need to return bad checksum.
1136 static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw)
1138 struct e1000_nvm_info *nvm = &hw->nvm;
1142 if (nvm->type != e1000_nvm_flash_hw)
1145 /* Check bit 4 of word 10h. If it is 0, firmware is done updating
1146 * 10h-12h. Checksum may need to be fixed.
1148 ret_val = e1000_read_nvm(hw, 0x10, 1, &data);
1152 if (!(data & 0x10)) {
1153 /* Read 0x23 and check bit 15. This bit is a 1
1154 * when the checksum has already been fixed. If
1155 * the checksum is still wrong and this bit is a
1156 * 1, we need to return bad checksum. Otherwise,
1157 * we need to set this bit to a 1 and update the
1160 ret_val = e1000_read_nvm(hw, 0x23, 1, &data);
1164 if (!(data & 0x8000)) {
1166 ret_val = e1000_write_nvm(hw, 0x23, 1, &data);
1169 ret_val = e1000e_update_nvm_checksum(hw);
1177 * e1000_clear_hw_cntrs_82571 - Clear device specific hardware counters
1178 * @hw: pointer to the HW structure
1180 * Clears the hardware counters by reading the counter registers.
1182 static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw)
1186 e1000e_clear_hw_cntrs_base(hw);
1189 temp = er32(PRC127);
1190 temp = er32(PRC255);
1191 temp = er32(PRC511);
1192 temp = er32(PRC1023);
1193 temp = er32(PRC1522);
1195 temp = er32(PTC127);
1196 temp = er32(PTC255);
1197 temp = er32(PTC511);
1198 temp = er32(PTC1023);
1199 temp = er32(PTC1522);
1201 temp = er32(ALGNERRC);
1202 temp = er32(RXERRC);
1204 temp = er32(CEXTERR);
1206 temp = er32(TSCTFC);
1208 temp = er32(MGTPRC);
1209 temp = er32(MGTPDC);
1210 temp = er32(MGTPTC);
1213 temp = er32(ICRXOC);
1215 temp = er32(ICRXPTC);
1216 temp = er32(ICRXATC);
1217 temp = er32(ICTXPTC);
1218 temp = er32(ICTXATC);
1219 temp = er32(ICTXQEC);
1220 temp = er32(ICTXQMTC);
1221 temp = er32(ICRXDMTC);
1224 static struct e1000_mac_operations e82571_mac_ops = {
1225 .mng_mode_enab = E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT,
1226 /* .check_for_link: media type dependent */
1227 .cleanup_led = e1000e_cleanup_led_generic,
1228 .clear_hw_cntrs = e1000_clear_hw_cntrs_82571,
1229 .get_bus_info = e1000e_get_bus_info_pcie,
1230 /* .get_link_up_info: media type dependent */
1231 .led_on = e1000e_led_on_generic,
1232 .led_off = e1000e_led_off_generic,
1233 .mc_addr_list_update = e1000_mc_addr_list_update_82571,
1234 .reset_hw = e1000_reset_hw_82571,
1235 .init_hw = e1000_init_hw_82571,
1236 .setup_link = e1000_setup_link_82571,
1237 /* .setup_physical_interface: media type dependent */
1240 static struct e1000_phy_operations e82_phy_ops_igp = {
1241 .acquire_phy = e1000_get_hw_semaphore_82571,
1242 .check_reset_block = e1000e_check_reset_block_generic,
1244 .force_speed_duplex = e1000e_phy_force_speed_duplex_igp,
1245 .get_cfg_done = e1000_get_cfg_done_82571,
1246 .get_cable_length = e1000e_get_cable_length_igp_2,
1247 .get_phy_info = e1000e_get_phy_info_igp,
1248 .read_phy_reg = e1000e_read_phy_reg_igp,
1249 .release_phy = e1000_put_hw_semaphore_82571,
1250 .reset_phy = e1000e_phy_hw_reset_generic,
1251 .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
1252 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1253 .write_phy_reg = e1000e_write_phy_reg_igp,
1256 static struct e1000_phy_operations e82_phy_ops_m88 = {
1257 .acquire_phy = e1000_get_hw_semaphore_82571,
1258 .check_reset_block = e1000e_check_reset_block_generic,
1259 .commit_phy = e1000e_phy_sw_reset,
1260 .force_speed_duplex = e1000e_phy_force_speed_duplex_m88,
1261 .get_cfg_done = e1000e_get_cfg_done,
1262 .get_cable_length = e1000e_get_cable_length_m88,
1263 .get_phy_info = e1000e_get_phy_info_m88,
1264 .read_phy_reg = e1000e_read_phy_reg_m88,
1265 .release_phy = e1000_put_hw_semaphore_82571,
1266 .reset_phy = e1000e_phy_hw_reset_generic,
1267 .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
1268 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1269 .write_phy_reg = e1000e_write_phy_reg_m88,
1272 static struct e1000_nvm_operations e82571_nvm_ops = {
1273 .acquire_nvm = e1000_acquire_nvm_82571,
1274 .read_nvm = e1000e_read_nvm_spi,
1275 .release_nvm = e1000_release_nvm_82571,
1276 .update_nvm = e1000_update_nvm_checksum_82571,
1277 .valid_led_default = e1000_valid_led_default_82571,
1278 .validate_nvm = e1000_validate_nvm_checksum_82571,
1279 .write_nvm = e1000_write_nvm_82571,
1282 static struct e1000_nvm_operations e82573_nvm_ops = {
1283 .acquire_nvm = e1000_acquire_nvm_82571,
1284 .read_nvm = e1000e_read_nvm_eerd,
1285 .release_nvm = e1000_release_nvm_82571,
1286 .update_nvm = e1000_update_nvm_checksum_82571,
1287 .valid_led_default = e1000_valid_led_default_82571,
1288 .validate_nvm = e1000_validate_nvm_checksum_82571,
1289 .write_nvm = e1000_write_nvm_82571,
1292 struct e1000_info e1000_82571_info = {
1294 .flags = FLAG_HAS_HW_VLAN_FILTER
1295 | FLAG_HAS_JUMBO_FRAMES
1296 | FLAG_HAS_STATS_PTC_PRC
1298 | FLAG_APME_IN_CTRL3
1299 | FLAG_RX_CSUM_ENABLED
1300 | FLAG_HAS_CTRLEXT_ON_LOAD
1301 | FLAG_HAS_STATS_ICR_ICT
1302 | FLAG_HAS_SMART_POWER_DOWN
1303 | FLAG_RESET_OVERWRITES_LAA /* errata */
1304 | FLAG_TARC_SPEED_MODE_BIT /* errata */
1305 | FLAG_APME_CHECK_PORT_B,
1307 .get_invariants = e1000_get_invariants_82571,
1308 .mac_ops = &e82571_mac_ops,
1309 .phy_ops = &e82_phy_ops_igp,
1310 .nvm_ops = &e82571_nvm_ops,
1313 struct e1000_info e1000_82572_info = {
1315 .flags = FLAG_HAS_HW_VLAN_FILTER
1316 | FLAG_HAS_JUMBO_FRAMES
1317 | FLAG_HAS_STATS_PTC_PRC
1319 | FLAG_APME_IN_CTRL3
1320 | FLAG_RX_CSUM_ENABLED
1321 | FLAG_HAS_CTRLEXT_ON_LOAD
1322 | FLAG_HAS_STATS_ICR_ICT
1323 | FLAG_TARC_SPEED_MODE_BIT, /* errata */
1325 .get_invariants = e1000_get_invariants_82571,
1326 .mac_ops = &e82571_mac_ops,
1327 .phy_ops = &e82_phy_ops_igp,
1328 .nvm_ops = &e82571_nvm_ops,
1331 struct e1000_info e1000_82573_info = {
1333 .flags = FLAG_HAS_HW_VLAN_FILTER
1334 | FLAG_HAS_JUMBO_FRAMES
1335 | FLAG_HAS_STATS_PTC_PRC
1337 | FLAG_APME_IN_CTRL3
1338 | FLAG_RX_CSUM_ENABLED
1339 | FLAG_HAS_STATS_ICR_ICT
1340 | FLAG_HAS_SMART_POWER_DOWN
1344 | FLAG_HAS_SWSM_ON_LOAD,
1346 .get_invariants = e1000_get_invariants_82571,
1347 .mac_ops = &e82571_mac_ops,
1348 .phy_ops = &e82_phy_ops_m88,
1349 .nvm_ops = &e82573_nvm_ops,