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_common.h"
34 #include "ixgbe_phy.h"
36 static s32 ixgbe_poll_eeprom_eerd_done(struct ixgbe_hw *hw);
37 static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw);
38 static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw);
39 static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw);
40 static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw);
41 static void ixgbe_standby_eeprom(struct ixgbe_hw *hw);
42 static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
44 static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count);
45 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
46 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
47 static void ixgbe_release_eeprom(struct ixgbe_hw *hw);
48 static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw);
50 static void ixgbe_enable_rar(struct ixgbe_hw *hw, u32 index);
51 static void ixgbe_disable_rar(struct ixgbe_hw *hw, u32 index);
52 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
53 static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq);
56 * ixgbe_start_hw_generic - Prepare hardware for Tx/Rx
57 * @hw: pointer to hardware structure
59 * Starts the hardware by filling the bus info structure and media type, clears
60 * all on chip counters, initializes receive address registers, multicast
61 * table, VLAN filter table, calls routine to set up link and flow control
62 * settings, and leaves transmit and receive units disabled and uninitialized
64 s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
68 /* Set the media type */
69 hw->phy.media_type = hw->mac.ops.get_media_type(hw);
71 /* Identify the PHY */
72 hw->phy.ops.identify(hw);
74 /* Clear the VLAN filter table */
75 hw->mac.ops.clear_vfta(hw);
77 /* Clear statistics registers */
78 hw->mac.ops.clear_hw_cntrs(hw);
80 /* Set No Snoop Disable */
81 ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
82 ctrl_ext |= IXGBE_CTRL_EXT_NS_DIS;
83 IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
84 IXGBE_WRITE_FLUSH(hw);
86 /* Clear adapter stopped flag */
87 hw->adapter_stopped = false;
93 * ixgbe_init_hw_generic - Generic hardware initialization
94 * @hw: pointer to hardware structure
96 * Initialize the hardware by resetting the hardware, filling the bus info
97 * structure and media type, clears all on chip counters, initializes receive
98 * address registers, multicast table, VLAN filter table, calls routine to set
99 * up link and flow control settings, and leaves transmit and receive units
100 * disabled and uninitialized
102 s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw)
104 /* Reset the hardware */
105 hw->mac.ops.reset_hw(hw);
108 hw->mac.ops.start_hw(hw);
114 * ixgbe_clear_hw_cntrs_generic - Generic clear hardware counters
115 * @hw: pointer to hardware structure
117 * Clears all hardware statistics counters by reading them from the hardware
118 * Statistics counters are clear on read.
120 s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
124 IXGBE_READ_REG(hw, IXGBE_CRCERRS);
125 IXGBE_READ_REG(hw, IXGBE_ILLERRC);
126 IXGBE_READ_REG(hw, IXGBE_ERRBC);
127 IXGBE_READ_REG(hw, IXGBE_MSPDC);
128 for (i = 0; i < 8; i++)
129 IXGBE_READ_REG(hw, IXGBE_MPC(i));
131 IXGBE_READ_REG(hw, IXGBE_MLFC);
132 IXGBE_READ_REG(hw, IXGBE_MRFC);
133 IXGBE_READ_REG(hw, IXGBE_RLEC);
134 IXGBE_READ_REG(hw, IXGBE_LXONTXC);
135 IXGBE_READ_REG(hw, IXGBE_LXONRXC);
136 IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
137 IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
139 for (i = 0; i < 8; i++) {
140 IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
141 IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
142 IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
143 IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
146 IXGBE_READ_REG(hw, IXGBE_PRC64);
147 IXGBE_READ_REG(hw, IXGBE_PRC127);
148 IXGBE_READ_REG(hw, IXGBE_PRC255);
149 IXGBE_READ_REG(hw, IXGBE_PRC511);
150 IXGBE_READ_REG(hw, IXGBE_PRC1023);
151 IXGBE_READ_REG(hw, IXGBE_PRC1522);
152 IXGBE_READ_REG(hw, IXGBE_GPRC);
153 IXGBE_READ_REG(hw, IXGBE_BPRC);
154 IXGBE_READ_REG(hw, IXGBE_MPRC);
155 IXGBE_READ_REG(hw, IXGBE_GPTC);
156 IXGBE_READ_REG(hw, IXGBE_GORCL);
157 IXGBE_READ_REG(hw, IXGBE_GORCH);
158 IXGBE_READ_REG(hw, IXGBE_GOTCL);
159 IXGBE_READ_REG(hw, IXGBE_GOTCH);
160 for (i = 0; i < 8; i++)
161 IXGBE_READ_REG(hw, IXGBE_RNBC(i));
162 IXGBE_READ_REG(hw, IXGBE_RUC);
163 IXGBE_READ_REG(hw, IXGBE_RFC);
164 IXGBE_READ_REG(hw, IXGBE_ROC);
165 IXGBE_READ_REG(hw, IXGBE_RJC);
166 IXGBE_READ_REG(hw, IXGBE_MNGPRC);
167 IXGBE_READ_REG(hw, IXGBE_MNGPDC);
168 IXGBE_READ_REG(hw, IXGBE_MNGPTC);
169 IXGBE_READ_REG(hw, IXGBE_TORL);
170 IXGBE_READ_REG(hw, IXGBE_TORH);
171 IXGBE_READ_REG(hw, IXGBE_TPR);
172 IXGBE_READ_REG(hw, IXGBE_TPT);
173 IXGBE_READ_REG(hw, IXGBE_PTC64);
174 IXGBE_READ_REG(hw, IXGBE_PTC127);
175 IXGBE_READ_REG(hw, IXGBE_PTC255);
176 IXGBE_READ_REG(hw, IXGBE_PTC511);
177 IXGBE_READ_REG(hw, IXGBE_PTC1023);
178 IXGBE_READ_REG(hw, IXGBE_PTC1522);
179 IXGBE_READ_REG(hw, IXGBE_MPTC);
180 IXGBE_READ_REG(hw, IXGBE_BPTC);
181 for (i = 0; i < 16; i++) {
182 IXGBE_READ_REG(hw, IXGBE_QPRC(i));
183 IXGBE_READ_REG(hw, IXGBE_QBRC(i));
184 IXGBE_READ_REG(hw, IXGBE_QPTC(i));
185 IXGBE_READ_REG(hw, IXGBE_QBTC(i));
192 * ixgbe_read_pba_num_generic - Reads part number from EEPROM
193 * @hw: pointer to hardware structure
194 * @pba_num: stores the part number from the EEPROM
196 * Reads the part number from the EEPROM.
198 s32 ixgbe_read_pba_num_generic(struct ixgbe_hw *hw, u32 *pba_num)
203 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
205 hw_dbg(hw, "NVM Read Error\n");
208 *pba_num = (u32)(data << 16);
210 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &data);
212 hw_dbg(hw, "NVM Read Error\n");
221 * ixgbe_get_mac_addr_generic - Generic get MAC address
222 * @hw: pointer to hardware structure
223 * @mac_addr: Adapter MAC address
225 * Reads the adapter's MAC address from first Receive Address Register (RAR0)
226 * A reset of the adapter must be performed prior to calling this function
227 * in order for the MAC address to have been loaded from the EEPROM into RAR0
229 s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr)
235 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(0));
236 rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(0));
238 for (i = 0; i < 4; i++)
239 mac_addr[i] = (u8)(rar_low >> (i*8));
241 for (i = 0; i < 2; i++)
242 mac_addr[i+4] = (u8)(rar_high >> (i*8));
248 * ixgbe_get_bus_info_generic - Generic set PCI bus info
249 * @hw: pointer to hardware structure
251 * Sets the PCI bus info (speed, width, type) within the ixgbe_hw structure
253 s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw)
255 struct ixgbe_adapter *adapter = hw->back;
256 struct ixgbe_mac_info *mac = &hw->mac;
259 hw->bus.type = ixgbe_bus_type_pci_express;
261 /* Get the negotiated link width and speed from PCI config space */
262 pci_read_config_word(adapter->pdev, IXGBE_PCI_LINK_STATUS,
265 switch (link_status & IXGBE_PCI_LINK_WIDTH) {
266 case IXGBE_PCI_LINK_WIDTH_1:
267 hw->bus.width = ixgbe_bus_width_pcie_x1;
269 case IXGBE_PCI_LINK_WIDTH_2:
270 hw->bus.width = ixgbe_bus_width_pcie_x2;
272 case IXGBE_PCI_LINK_WIDTH_4:
273 hw->bus.width = ixgbe_bus_width_pcie_x4;
275 case IXGBE_PCI_LINK_WIDTH_8:
276 hw->bus.width = ixgbe_bus_width_pcie_x8;
279 hw->bus.width = ixgbe_bus_width_unknown;
283 switch (link_status & IXGBE_PCI_LINK_SPEED) {
284 case IXGBE_PCI_LINK_SPEED_2500:
285 hw->bus.speed = ixgbe_bus_speed_2500;
287 case IXGBE_PCI_LINK_SPEED_5000:
288 hw->bus.speed = ixgbe_bus_speed_5000;
291 hw->bus.speed = ixgbe_bus_speed_unknown;
295 mac->ops.set_lan_id(hw);
301 * ixgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
302 * @hw: pointer to the HW structure
304 * Determines the LAN function id by reading memory-mapped registers
305 * and swaps the port value if requested.
307 void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw)
309 struct ixgbe_bus_info *bus = &hw->bus;
312 reg = IXGBE_READ_REG(hw, IXGBE_STATUS);
313 bus->func = (reg & IXGBE_STATUS_LAN_ID) >> IXGBE_STATUS_LAN_ID_SHIFT;
314 bus->lan_id = bus->func;
316 /* check for a port swap */
317 reg = IXGBE_READ_REG(hw, IXGBE_FACTPS);
318 if (reg & IXGBE_FACTPS_LFS)
323 * ixgbe_stop_adapter_generic - Generic stop Tx/Rx units
324 * @hw: pointer to hardware structure
326 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
327 * disables transmit and receive units. The adapter_stopped flag is used by
328 * the shared code and drivers to determine if the adapter is in a stopped
329 * state and should not touch the hardware.
331 s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw)
333 u32 number_of_queues;
338 * Set the adapter_stopped flag so other driver functions stop touching
341 hw->adapter_stopped = true;
343 /* Disable the receive unit */
344 reg_val = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
345 reg_val &= ~(IXGBE_RXCTRL_RXEN);
346 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, reg_val);
347 IXGBE_WRITE_FLUSH(hw);
350 /* Clear interrupt mask to stop from interrupts being generated */
351 IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK);
353 /* Clear any pending interrupts */
354 IXGBE_READ_REG(hw, IXGBE_EICR);
356 /* Disable the transmit unit. Each queue must be disabled. */
357 number_of_queues = hw->mac.max_tx_queues;
358 for (i = 0; i < number_of_queues; i++) {
359 reg_val = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
360 if (reg_val & IXGBE_TXDCTL_ENABLE) {
361 reg_val &= ~IXGBE_TXDCTL_ENABLE;
362 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(i), reg_val);
367 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
368 * access and verify no pending requests
370 if (ixgbe_disable_pcie_master(hw) != 0)
371 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
377 * ixgbe_led_on_generic - Turns on the software controllable LEDs.
378 * @hw: pointer to hardware structure
379 * @index: led number to turn on
381 s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
383 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
385 /* To turn on the LED, set mode to ON. */
386 led_reg &= ~IXGBE_LED_MODE_MASK(index);
387 led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index);
388 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
389 IXGBE_WRITE_FLUSH(hw);
395 * ixgbe_led_off_generic - Turns off the software controllable LEDs.
396 * @hw: pointer to hardware structure
397 * @index: led number to turn off
399 s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
401 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
403 /* To turn off the LED, set mode to OFF. */
404 led_reg &= ~IXGBE_LED_MODE_MASK(index);
405 led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index);
406 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
407 IXGBE_WRITE_FLUSH(hw);
413 * ixgbe_init_eeprom_params_generic - Initialize EEPROM params
414 * @hw: pointer to hardware structure
416 * Initializes the EEPROM parameters ixgbe_eeprom_info within the
417 * ixgbe_hw struct in order to set up EEPROM access.
419 s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw)
421 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
425 if (eeprom->type == ixgbe_eeprom_uninitialized) {
426 eeprom->type = ixgbe_eeprom_none;
427 /* Set default semaphore delay to 10ms which is a well
429 eeprom->semaphore_delay = 10;
432 * Check for EEPROM present first.
433 * If not present leave as none
435 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
436 if (eec & IXGBE_EEC_PRES) {
437 eeprom->type = ixgbe_eeprom_spi;
440 * SPI EEPROM is assumed here. This code would need to
441 * change if a future EEPROM is not SPI.
443 eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >>
444 IXGBE_EEC_SIZE_SHIFT);
445 eeprom->word_size = 1 << (eeprom_size +
446 IXGBE_EEPROM_WORD_SIZE_SHIFT);
449 if (eec & IXGBE_EEC_ADDR_SIZE)
450 eeprom->address_bits = 16;
452 eeprom->address_bits = 8;
453 hw_dbg(hw, "Eeprom params: type = %d, size = %d, address bits: "
454 "%d\n", eeprom->type, eeprom->word_size,
455 eeprom->address_bits);
462 * ixgbe_write_eeprom_generic - Writes 16 bit value to EEPROM
463 * @hw: pointer to hardware structure
464 * @offset: offset within the EEPROM to be written to
465 * @data: 16 bit word to be written to the EEPROM
467 * If ixgbe_eeprom_update_checksum is not called after this function, the
468 * EEPROM will most likely contain an invalid checksum.
470 s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
473 u8 write_opcode = IXGBE_EEPROM_WRITE_OPCODE_SPI;
475 hw->eeprom.ops.init_params(hw);
477 if (offset >= hw->eeprom.word_size) {
478 status = IXGBE_ERR_EEPROM;
482 /* Prepare the EEPROM for writing */
483 status = ixgbe_acquire_eeprom(hw);
486 if (ixgbe_ready_eeprom(hw) != 0) {
487 ixgbe_release_eeprom(hw);
488 status = IXGBE_ERR_EEPROM;
493 ixgbe_standby_eeprom(hw);
495 /* Send the WRITE ENABLE command (8 bit opcode ) */
496 ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_WREN_OPCODE_SPI,
497 IXGBE_EEPROM_OPCODE_BITS);
499 ixgbe_standby_eeprom(hw);
502 * Some SPI eeproms use the 8th address bit embedded in the
505 if ((hw->eeprom.address_bits == 8) && (offset >= 128))
506 write_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
508 /* Send the Write command (8-bit opcode + addr) */
509 ixgbe_shift_out_eeprom_bits(hw, write_opcode,
510 IXGBE_EEPROM_OPCODE_BITS);
511 ixgbe_shift_out_eeprom_bits(hw, (u16)(offset*2),
512 hw->eeprom.address_bits);
515 data = (data >> 8) | (data << 8);
516 ixgbe_shift_out_eeprom_bits(hw, data, 16);
517 ixgbe_standby_eeprom(hw);
519 msleep(hw->eeprom.semaphore_delay);
520 /* Done with writing - release the EEPROM */
521 ixgbe_release_eeprom(hw);
529 * ixgbe_read_eeprom_bit_bang_generic - Read EEPROM word using bit-bang
530 * @hw: pointer to hardware structure
531 * @offset: offset within the EEPROM to be read
532 * @data: read 16 bit value from EEPROM
534 * Reads 16 bit value from EEPROM through bit-bang method
536 s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
541 u8 read_opcode = IXGBE_EEPROM_READ_OPCODE_SPI;
543 hw->eeprom.ops.init_params(hw);
545 if (offset >= hw->eeprom.word_size) {
546 status = IXGBE_ERR_EEPROM;
550 /* Prepare the EEPROM for reading */
551 status = ixgbe_acquire_eeprom(hw);
554 if (ixgbe_ready_eeprom(hw) != 0) {
555 ixgbe_release_eeprom(hw);
556 status = IXGBE_ERR_EEPROM;
561 ixgbe_standby_eeprom(hw);
564 * Some SPI eeproms use the 8th address bit embedded in the
567 if ((hw->eeprom.address_bits == 8) && (offset >= 128))
568 read_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
570 /* Send the READ command (opcode + addr) */
571 ixgbe_shift_out_eeprom_bits(hw, read_opcode,
572 IXGBE_EEPROM_OPCODE_BITS);
573 ixgbe_shift_out_eeprom_bits(hw, (u16)(offset*2),
574 hw->eeprom.address_bits);
577 word_in = ixgbe_shift_in_eeprom_bits(hw, 16);
578 *data = (word_in >> 8) | (word_in << 8);
580 /* End this read operation */
581 ixgbe_release_eeprom(hw);
589 * ixgbe_read_eeprom_generic - Read EEPROM word using EERD
590 * @hw: pointer to hardware structure
591 * @offset: offset of word in the EEPROM to read
592 * @data: word read from the EEPROM
594 * Reads a 16 bit word from the EEPROM using the EERD register.
596 s32 ixgbe_read_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 *data)
601 hw->eeprom.ops.init_params(hw);
603 if (offset >= hw->eeprom.word_size) {
604 status = IXGBE_ERR_EEPROM;
608 eerd = (offset << IXGBE_EEPROM_READ_ADDR_SHIFT) +
609 IXGBE_EEPROM_READ_REG_START;
611 IXGBE_WRITE_REG(hw, IXGBE_EERD, eerd);
612 status = ixgbe_poll_eeprom_eerd_done(hw);
615 *data = (IXGBE_READ_REG(hw, IXGBE_EERD) >>
616 IXGBE_EEPROM_READ_REG_DATA);
618 hw_dbg(hw, "Eeprom read timed out\n");
625 * ixgbe_poll_eeprom_eerd_done - Poll EERD status
626 * @hw: pointer to hardware structure
628 * Polls the status bit (bit 1) of the EERD to determine when the read is done.
630 static s32 ixgbe_poll_eeprom_eerd_done(struct ixgbe_hw *hw)
634 s32 status = IXGBE_ERR_EEPROM;
636 for (i = 0; i < IXGBE_EERD_ATTEMPTS; i++) {
637 reg = IXGBE_READ_REG(hw, IXGBE_EERD);
638 if (reg & IXGBE_EEPROM_READ_REG_DONE) {
648 * ixgbe_acquire_eeprom - Acquire EEPROM using bit-bang
649 * @hw: pointer to hardware structure
651 * Prepares EEPROM for access using bit-bang method. This function should
652 * be called before issuing a command to the EEPROM.
654 static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
660 if (ixgbe_acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0)
661 status = IXGBE_ERR_SWFW_SYNC;
664 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
666 /* Request EEPROM Access */
667 eec |= IXGBE_EEC_REQ;
668 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
670 for (i = 0; i < IXGBE_EEPROM_GRANT_ATTEMPTS; i++) {
671 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
672 if (eec & IXGBE_EEC_GNT)
677 /* Release if grant not acquired */
678 if (!(eec & IXGBE_EEC_GNT)) {
679 eec &= ~IXGBE_EEC_REQ;
680 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
681 hw_dbg(hw, "Could not acquire EEPROM grant\n");
683 ixgbe_release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
684 status = IXGBE_ERR_EEPROM;
688 /* Setup EEPROM for Read/Write */
690 /* Clear CS and SK */
691 eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
692 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
693 IXGBE_WRITE_FLUSH(hw);
700 * ixgbe_get_eeprom_semaphore - Get hardware semaphore
701 * @hw: pointer to hardware structure
703 * Sets the hardware semaphores so EEPROM access can occur for bit-bang method
705 static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
707 s32 status = IXGBE_ERR_EEPROM;
712 /* Set timeout value based on size of EEPROM */
713 timeout = hw->eeprom.word_size + 1;
715 /* Get SMBI software semaphore between device drivers first */
716 for (i = 0; i < timeout; i++) {
718 * If the SMBI bit is 0 when we read it, then the bit will be
719 * set and we have the semaphore
721 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
722 if (!(swsm & IXGBE_SWSM_SMBI)) {
729 /* Now get the semaphore between SW/FW through the SWESMBI bit */
731 for (i = 0; i < timeout; i++) {
732 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
734 /* Set the SW EEPROM semaphore bit to request access */
735 swsm |= IXGBE_SWSM_SWESMBI;
736 IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm);
739 * If we set the bit successfully then we got the
742 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
743 if (swsm & IXGBE_SWSM_SWESMBI)
750 * Release semaphores and return error if SW EEPROM semaphore
751 * was not granted because we don't have access to the EEPROM
754 hw_dbg(hw, "Driver can't access the Eeprom - Semaphore "
756 ixgbe_release_eeprom_semaphore(hw);
757 status = IXGBE_ERR_EEPROM;
765 * ixgbe_release_eeprom_semaphore - Release hardware semaphore
766 * @hw: pointer to hardware structure
768 * This function clears hardware semaphore bits.
770 static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw)
774 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
776 /* Release both semaphores by writing 0 to the bits SWESMBI and SMBI */
777 swsm &= ~(IXGBE_SWSM_SWESMBI | IXGBE_SWSM_SMBI);
778 IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm);
779 IXGBE_WRITE_FLUSH(hw);
783 * ixgbe_ready_eeprom - Polls for EEPROM ready
784 * @hw: pointer to hardware structure
786 static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw)
793 * Read "Status Register" repeatedly until the LSB is cleared. The
794 * EEPROM will signal that the command has been completed by clearing
795 * bit 0 of the internal status register. If it's not cleared within
796 * 5 milliseconds, then error out.
798 for (i = 0; i < IXGBE_EEPROM_MAX_RETRY_SPI; i += 5) {
799 ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_RDSR_OPCODE_SPI,
800 IXGBE_EEPROM_OPCODE_BITS);
801 spi_stat_reg = (u8)ixgbe_shift_in_eeprom_bits(hw, 8);
802 if (!(spi_stat_reg & IXGBE_EEPROM_STATUS_RDY_SPI))
806 ixgbe_standby_eeprom(hw);
810 * On some parts, SPI write time could vary from 0-20mSec on 3.3V
811 * devices (and only 0-5mSec on 5V devices)
813 if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) {
814 hw_dbg(hw, "SPI EEPROM Status error\n");
815 status = IXGBE_ERR_EEPROM;
822 * ixgbe_standby_eeprom - Returns EEPROM to a "standby" state
823 * @hw: pointer to hardware structure
825 static void ixgbe_standby_eeprom(struct ixgbe_hw *hw)
829 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
831 /* Toggle CS to flush commands */
833 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
834 IXGBE_WRITE_FLUSH(hw);
836 eec &= ~IXGBE_EEC_CS;
837 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
838 IXGBE_WRITE_FLUSH(hw);
843 * ixgbe_shift_out_eeprom_bits - Shift data bits out to the EEPROM.
844 * @hw: pointer to hardware structure
845 * @data: data to send to the EEPROM
846 * @count: number of bits to shift out
848 static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
855 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
858 * Mask is used to shift "count" bits of "data" out to the EEPROM
859 * one bit at a time. Determine the starting bit based on count
861 mask = 0x01 << (count - 1);
863 for (i = 0; i < count; i++) {
865 * A "1" is shifted out to the EEPROM by setting bit "DI" to a
866 * "1", and then raising and then lowering the clock (the SK
867 * bit controls the clock input to the EEPROM). A "0" is
868 * shifted out to the EEPROM by setting "DI" to "0" and then
869 * raising and then lowering the clock.
874 eec &= ~IXGBE_EEC_DI;
876 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
877 IXGBE_WRITE_FLUSH(hw);
881 ixgbe_raise_eeprom_clk(hw, &eec);
882 ixgbe_lower_eeprom_clk(hw, &eec);
885 * Shift mask to signify next bit of data to shift in to the
891 /* We leave the "DI" bit set to "0" when we leave this routine. */
892 eec &= ~IXGBE_EEC_DI;
893 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
894 IXGBE_WRITE_FLUSH(hw);
898 * ixgbe_shift_in_eeprom_bits - Shift data bits in from the EEPROM
899 * @hw: pointer to hardware structure
901 static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count)
908 * In order to read a register from the EEPROM, we need to shift
909 * 'count' bits in from the EEPROM. Bits are "shifted in" by raising
910 * the clock input to the EEPROM (setting the SK bit), and then reading
911 * the value of the "DO" bit. During this "shifting in" process the
912 * "DI" bit should always be clear.
914 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
916 eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI);
918 for (i = 0; i < count; i++) {
920 ixgbe_raise_eeprom_clk(hw, &eec);
922 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
924 eec &= ~(IXGBE_EEC_DI);
925 if (eec & IXGBE_EEC_DO)
928 ixgbe_lower_eeprom_clk(hw, &eec);
935 * ixgbe_raise_eeprom_clk - Raises the EEPROM's clock input.
936 * @hw: pointer to hardware structure
937 * @eec: EEC register's current value
939 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
942 * Raise the clock input to the EEPROM
943 * (setting the SK bit), then delay
945 *eec = *eec | IXGBE_EEC_SK;
946 IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
947 IXGBE_WRITE_FLUSH(hw);
952 * ixgbe_lower_eeprom_clk - Lowers the EEPROM's clock input.
953 * @hw: pointer to hardware structure
954 * @eecd: EECD's current value
956 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
959 * Lower the clock input to the EEPROM (clearing the SK bit), then
962 *eec = *eec & ~IXGBE_EEC_SK;
963 IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
964 IXGBE_WRITE_FLUSH(hw);
969 * ixgbe_release_eeprom - Release EEPROM, release semaphores
970 * @hw: pointer to hardware structure
972 static void ixgbe_release_eeprom(struct ixgbe_hw *hw)
976 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
978 eec |= IXGBE_EEC_CS; /* Pull CS high */
979 eec &= ~IXGBE_EEC_SK; /* Lower SCK */
981 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
982 IXGBE_WRITE_FLUSH(hw);
986 /* Stop requesting EEPROM access */
987 eec &= ~IXGBE_EEC_REQ;
988 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
990 ixgbe_release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
994 * ixgbe_calc_eeprom_checksum - Calculates and returns the checksum
995 * @hw: pointer to hardware structure
997 static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw)
1006 /* Include 0x0-0x3F in the checksum */
1007 for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) {
1008 if (hw->eeprom.ops.read(hw, i, &word) != 0) {
1009 hw_dbg(hw, "EEPROM read failed\n");
1015 /* Include all data from pointers except for the fw pointer */
1016 for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
1017 hw->eeprom.ops.read(hw, i, &pointer);
1019 /* Make sure the pointer seems valid */
1020 if (pointer != 0xFFFF && pointer != 0) {
1021 hw->eeprom.ops.read(hw, pointer, &length);
1023 if (length != 0xFFFF && length != 0) {
1024 for (j = pointer+1; j <= pointer+length; j++) {
1025 hw->eeprom.ops.read(hw, j, &word);
1032 checksum = (u16)IXGBE_EEPROM_SUM - checksum;
1038 * ixgbe_validate_eeprom_checksum_generic - Validate EEPROM checksum
1039 * @hw: pointer to hardware structure
1040 * @checksum_val: calculated checksum
1042 * Performs checksum calculation and validates the EEPROM checksum. If the
1043 * caller does not need checksum_val, the value can be NULL.
1045 s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
1050 u16 read_checksum = 0;
1053 * Read the first word from the EEPROM. If this times out or fails, do
1054 * not continue or we could be in for a very long wait while every
1057 status = hw->eeprom.ops.read(hw, 0, &checksum);
1060 checksum = ixgbe_calc_eeprom_checksum(hw);
1062 hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum);
1065 * Verify read checksum from EEPROM is the same as
1066 * calculated checksum
1068 if (read_checksum != checksum)
1069 status = IXGBE_ERR_EEPROM_CHECKSUM;
1071 /* If the user cares, return the calculated checksum */
1073 *checksum_val = checksum;
1075 hw_dbg(hw, "EEPROM read failed\n");
1082 * ixgbe_update_eeprom_checksum_generic - Updates the EEPROM checksum
1083 * @hw: pointer to hardware structure
1085 s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw)
1091 * Read the first word from the EEPROM. If this times out or fails, do
1092 * not continue or we could be in for a very long wait while every
1095 status = hw->eeprom.ops.read(hw, 0, &checksum);
1098 checksum = ixgbe_calc_eeprom_checksum(hw);
1099 status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM,
1102 hw_dbg(hw, "EEPROM read failed\n");
1109 * ixgbe_validate_mac_addr - Validate MAC address
1110 * @mac_addr: pointer to MAC address.
1112 * Tests a MAC address to ensure it is a valid Individual Address
1114 s32 ixgbe_validate_mac_addr(u8 *mac_addr)
1118 /* Make sure it is not a multicast address */
1119 if (IXGBE_IS_MULTICAST(mac_addr))
1120 status = IXGBE_ERR_INVALID_MAC_ADDR;
1121 /* Not a broadcast address */
1122 else if (IXGBE_IS_BROADCAST(mac_addr))
1123 status = IXGBE_ERR_INVALID_MAC_ADDR;
1124 /* Reject the zero address */
1125 else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
1126 mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0)
1127 status = IXGBE_ERR_INVALID_MAC_ADDR;
1133 * ixgbe_set_rar_generic - Set Rx address register
1134 * @hw: pointer to hardware structure
1135 * @index: Receive address register to write
1136 * @addr: Address to put into receive address register
1137 * @vmdq: VMDq "set" or "pool" index
1138 * @enable_addr: set flag that address is active
1140 * Puts an ethernet address into a receive address register.
1142 s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
1145 u32 rar_low, rar_high;
1146 u32 rar_entries = hw->mac.num_rar_entries;
1148 /* setup VMDq pool selection before this RAR gets enabled */
1149 hw->mac.ops.set_vmdq(hw, index, vmdq);
1151 /* Make sure we are using a valid rar index range */
1152 if (index < rar_entries) {
1154 * HW expects these in little endian so we reverse the byte
1155 * order from network order (big endian) to little endian
1157 rar_low = ((u32)addr[0] |
1158 ((u32)addr[1] << 8) |
1159 ((u32)addr[2] << 16) |
1160 ((u32)addr[3] << 24));
1162 * Some parts put the VMDq setting in the extra RAH bits,
1163 * so save everything except the lower 16 bits that hold part
1164 * of the address and the address valid bit.
1166 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
1167 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
1168 rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8));
1170 if (enable_addr != 0)
1171 rar_high |= IXGBE_RAH_AV;
1173 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low);
1174 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
1176 hw_dbg(hw, "RAR index %d is out of range.\n", index);
1183 * ixgbe_clear_rar_generic - Remove Rx address register
1184 * @hw: pointer to hardware structure
1185 * @index: Receive address register to write
1187 * Clears an ethernet address from a receive address register.
1189 s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
1192 u32 rar_entries = hw->mac.num_rar_entries;
1194 /* Make sure we are using a valid rar index range */
1195 if (index < rar_entries) {
1197 * Some parts put the VMDq setting in the extra RAH bits,
1198 * so save everything except the lower 16 bits that hold part
1199 * of the address and the address valid bit.
1201 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
1202 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
1204 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0);
1205 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
1207 hw_dbg(hw, "RAR index %d is out of range.\n", index);
1210 /* clear VMDq pool/queue selection for this RAR */
1211 hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL);
1217 * ixgbe_enable_rar - Enable Rx address register
1218 * @hw: pointer to hardware structure
1219 * @index: index into the RAR table
1221 * Enables the select receive address register.
1223 static void ixgbe_enable_rar(struct ixgbe_hw *hw, u32 index)
1227 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
1228 rar_high |= IXGBE_RAH_AV;
1229 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
1233 * ixgbe_disable_rar - Disable Rx address register
1234 * @hw: pointer to hardware structure
1235 * @index: index into the RAR table
1237 * Disables the select receive address register.
1239 static void ixgbe_disable_rar(struct ixgbe_hw *hw, u32 index)
1243 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
1244 rar_high &= (~IXGBE_RAH_AV);
1245 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
1249 * ixgbe_init_rx_addrs_generic - Initializes receive address filters.
1250 * @hw: pointer to hardware structure
1252 * Places the MAC address in receive address register 0 and clears the rest
1253 * of the receive address registers. Clears the multicast table. Assumes
1254 * the receiver is in reset when the routine is called.
1256 s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw)
1259 u32 rar_entries = hw->mac.num_rar_entries;
1262 * If the current mac address is valid, assume it is a software override
1263 * to the permanent address.
1264 * Otherwise, use the permanent address from the eeprom.
1266 if (ixgbe_validate_mac_addr(hw->mac.addr) ==
1267 IXGBE_ERR_INVALID_MAC_ADDR) {
1268 /* Get the MAC address from the RAR0 for later reference */
1269 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
1271 hw_dbg(hw, " Keeping Current RAR0 Addr =%.2X %.2X %.2X ",
1272 hw->mac.addr[0], hw->mac.addr[1],
1274 hw_dbg(hw, "%.2X %.2X %.2X\n", hw->mac.addr[3],
1275 hw->mac.addr[4], hw->mac.addr[5]);
1277 /* Setup the receive address. */
1278 hw_dbg(hw, "Overriding MAC Address in RAR[0]\n");
1279 hw_dbg(hw, " New MAC Addr =%.2X %.2X %.2X ",
1280 hw->mac.addr[0], hw->mac.addr[1],
1282 hw_dbg(hw, "%.2X %.2X %.2X\n", hw->mac.addr[3],
1283 hw->mac.addr[4], hw->mac.addr[5]);
1285 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
1287 hw->addr_ctrl.overflow_promisc = 0;
1289 hw->addr_ctrl.rar_used_count = 1;
1291 /* Zero out the other receive addresses. */
1292 hw_dbg(hw, "Clearing RAR[1-%d]\n", rar_entries - 1);
1293 for (i = 1; i < rar_entries; i++) {
1294 IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
1295 IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
1299 hw->addr_ctrl.mc_addr_in_rar_count = 0;
1300 hw->addr_ctrl.mta_in_use = 0;
1301 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
1303 hw_dbg(hw, " Clearing MTA\n");
1304 for (i = 0; i < hw->mac.mcft_size; i++)
1305 IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0);
1307 if (hw->mac.ops.init_uta_tables)
1308 hw->mac.ops.init_uta_tables(hw);
1314 * ixgbe_add_uc_addr - Adds a secondary unicast address.
1315 * @hw: pointer to hardware structure
1316 * @addr: new address
1318 * Adds it to unused receive address register or goes into promiscuous mode.
1320 static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
1322 u32 rar_entries = hw->mac.num_rar_entries;
1325 hw_dbg(hw, " UC Addr = %.2X %.2X %.2X %.2X %.2X %.2X\n",
1326 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
1329 * Place this address in the RAR if there is room,
1330 * else put the controller into promiscuous mode
1332 if (hw->addr_ctrl.rar_used_count < rar_entries) {
1333 rar = hw->addr_ctrl.rar_used_count -
1334 hw->addr_ctrl.mc_addr_in_rar_count;
1335 hw->mac.ops.set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
1336 hw_dbg(hw, "Added a secondary address to RAR[%d]\n", rar);
1337 hw->addr_ctrl.rar_used_count++;
1339 hw->addr_ctrl.overflow_promisc++;
1342 hw_dbg(hw, "ixgbe_add_uc_addr Complete\n");
1346 * ixgbe_update_uc_addr_list_generic - Updates MAC list of secondary addresses
1347 * @hw: pointer to hardware structure
1348 * @addr_list: the list of new addresses
1349 * @addr_count: number of addresses
1350 * @next: iterator function to walk the address list
1352 * The given list replaces any existing list. Clears the secondary addrs from
1353 * receive address registers. Uses unused receive address registers for the
1354 * first secondary addresses, and falls back to promiscuous mode as needed.
1356 * Drivers using secondary unicast addresses must set user_set_promisc when
1357 * manually putting the device into promiscuous mode.
1359 s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
1360 u32 addr_count, ixgbe_mc_addr_itr next)
1364 u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc;
1370 * Clear accounting of old secondary address list,
1371 * don't count RAR[0]
1373 uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1;
1374 hw->addr_ctrl.rar_used_count -= uc_addr_in_use;
1375 hw->addr_ctrl.overflow_promisc = 0;
1377 /* Zero out the other receive addresses */
1378 hw_dbg(hw, "Clearing RAR[1-%d]\n", uc_addr_in_use);
1379 for (i = 1; i <= uc_addr_in_use; i++) {
1380 IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
1381 IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
1384 /* Add the new addresses */
1385 for (i = 0; i < addr_count; i++) {
1386 hw_dbg(hw, " Adding the secondary addresses:\n");
1387 addr = next(hw, &addr_list, &vmdq);
1388 ixgbe_add_uc_addr(hw, addr, vmdq);
1391 if (hw->addr_ctrl.overflow_promisc) {
1392 /* enable promisc if not already in overflow or set by user */
1393 if (!old_promisc_setting && !hw->addr_ctrl.user_set_promisc) {
1394 hw_dbg(hw, " Entering address overflow promisc mode\n");
1395 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1396 fctrl |= IXGBE_FCTRL_UPE;
1397 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
1400 /* only disable if set by overflow, not by user */
1401 if (old_promisc_setting && !hw->addr_ctrl.user_set_promisc) {
1402 hw_dbg(hw, " Leaving address overflow promisc mode\n");
1403 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1404 fctrl &= ~IXGBE_FCTRL_UPE;
1405 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
1409 hw_dbg(hw, "ixgbe_update_uc_addr_list_generic Complete\n");
1414 * ixgbe_mta_vector - Determines bit-vector in multicast table to set
1415 * @hw: pointer to hardware structure
1416 * @mc_addr: the multicast address
1418 * Extracts the 12 bits, from a multicast address, to determine which
1419 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
1420 * incoming rx multicast addresses, to determine the bit-vector to check in
1421 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
1422 * by the MO field of the MCSTCTRL. The MO field is set during initialization
1423 * to mc_filter_type.
1425 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
1429 switch (hw->mac.mc_filter_type) {
1430 case 0: /* use bits [47:36] of the address */
1431 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
1433 case 1: /* use bits [46:35] of the address */
1434 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
1436 case 2: /* use bits [45:34] of the address */
1437 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
1439 case 3: /* use bits [43:32] of the address */
1440 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
1442 default: /* Invalid mc_filter_type */
1443 hw_dbg(hw, "MC filter type param set incorrectly\n");
1447 /* vector can only be 12-bits or boundary will be exceeded */
1453 * ixgbe_set_mta - Set bit-vector in multicast table
1454 * @hw: pointer to hardware structure
1455 * @hash_value: Multicast address hash value
1457 * Sets the bit-vector in the multicast table.
1459 static void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
1466 hw->addr_ctrl.mta_in_use++;
1468 vector = ixgbe_mta_vector(hw, mc_addr);
1469 hw_dbg(hw, " bit-vector = 0x%03X\n", vector);
1472 * The MTA is a register array of 128 32-bit registers. It is treated
1473 * like an array of 4096 bits. We want to set bit
1474 * BitArray[vector_value]. So we figure out what register the bit is
1475 * in, read it, OR in the new bit, then write back the new value. The
1476 * register is determined by the upper 7 bits of the vector value and
1477 * the bit within that register are determined by the lower 5 bits of
1480 vector_reg = (vector >> 5) & 0x7F;
1481 vector_bit = vector & 0x1F;
1482 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
1483 mta_reg |= (1 << vector_bit);
1484 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
1488 * ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses
1489 * @hw: pointer to hardware structure
1490 * @mc_addr_list: the list of new multicast addresses
1491 * @mc_addr_count: number of addresses
1492 * @next: iterator function to walk the multicast address list
1494 * The given list replaces any existing list. Clears the MC addrs from receive
1495 * address registers and the multicast table. Uses unused receive address
1496 * registers for the first multicast addresses, and hashes the rest into the
1499 s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
1500 u32 mc_addr_count, ixgbe_mc_addr_itr next)
1506 * Set the new number of MC addresses that we are being requested to
1509 hw->addr_ctrl.num_mc_addrs = mc_addr_count;
1510 hw->addr_ctrl.mta_in_use = 0;
1513 hw_dbg(hw, " Clearing MTA\n");
1514 for (i = 0; i < hw->mac.mcft_size; i++)
1515 IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0);
1517 /* Add the new addresses */
1518 for (i = 0; i < mc_addr_count; i++) {
1519 hw_dbg(hw, " Adding the multicast addresses:\n");
1520 ixgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq));
1524 if (hw->addr_ctrl.mta_in_use > 0)
1525 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL,
1526 IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type);
1528 hw_dbg(hw, "ixgbe_update_mc_addr_list_generic Complete\n");
1533 * ixgbe_enable_mc_generic - Enable multicast address in RAR
1534 * @hw: pointer to hardware structure
1536 * Enables multicast address in RAR and the use of the multicast hash table.
1538 s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw)
1541 u32 rar_entries = hw->mac.num_rar_entries;
1542 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
1544 if (a->mc_addr_in_rar_count > 0)
1545 for (i = (rar_entries - a->mc_addr_in_rar_count);
1546 i < rar_entries; i++)
1547 ixgbe_enable_rar(hw, i);
1549 if (a->mta_in_use > 0)
1550 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE |
1551 hw->mac.mc_filter_type);
1557 * ixgbe_disable_mc_generic - Disable multicast address in RAR
1558 * @hw: pointer to hardware structure
1560 * Disables multicast address in RAR and the use of the multicast hash table.
1562 s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw)
1565 u32 rar_entries = hw->mac.num_rar_entries;
1566 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
1568 if (a->mc_addr_in_rar_count > 0)
1569 for (i = (rar_entries - a->mc_addr_in_rar_count);
1570 i < rar_entries; i++)
1571 ixgbe_disable_rar(hw, i);
1573 if (a->mta_in_use > 0)
1574 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
1580 * ixgbe_fc_enable - Enable flow control
1581 * @hw: pointer to hardware structure
1582 * @packetbuf_num: packet buffer number (0-7)
1584 * Enable flow control according to the current settings.
1586 s32 ixgbe_fc_enable(struct ixgbe_hw *hw, s32 packetbuf_num)
1595 if (hw->fc.requested_mode == ixgbe_fc_pfc)
1598 #endif /* CONFIG_DCB */
1600 mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
1601 mflcn_reg &= ~(IXGBE_MFLCN_RFCE | IXGBE_MFLCN_RPFCE);
1603 fccfg_reg = IXGBE_READ_REG(hw, IXGBE_FCCFG);
1604 fccfg_reg &= ~(IXGBE_FCCFG_TFCE_802_3X | IXGBE_FCCFG_TFCE_PRIORITY);
1607 * The possible values of fc.current_mode are:
1608 * 0: Flow control is completely disabled
1609 * 1: Rx flow control is enabled (we can receive pause frames,
1610 * but not send pause frames).
1611 * 2: Tx flow control is enabled (we can send pause frames but
1612 * we do not support receiving pause frames).
1613 * 3: Both Rx and Tx flow control (symmetric) are enabled.
1614 * 4: Priority Flow Control is enabled.
1617 switch (hw->fc.current_mode) {
1619 /* Flow control completely disabled by software override. */
1621 case ixgbe_fc_rx_pause:
1623 * Rx Flow control is enabled and Tx Flow control is
1624 * disabled by software override. Since there really
1625 * isn't a way to advertise that we are capable of RX
1626 * Pause ONLY, we will advertise that we support both
1627 * symmetric and asymmetric Rx PAUSE. Later, we will
1628 * disable the adapter's ability to send PAUSE frames.
1630 mflcn_reg |= IXGBE_MFLCN_RFCE;
1632 case ixgbe_fc_tx_pause:
1634 * Tx Flow control is enabled, and Rx Flow control is
1635 * disabled by software override.
1637 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
1640 /* Flow control (both Rx and Tx) is enabled by SW override. */
1641 mflcn_reg |= IXGBE_MFLCN_RFCE;
1642 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
1650 hw_dbg(hw, "Flow control param set incorrectly\n");
1651 ret_val = -IXGBE_ERR_CONFIG;
1656 /* Enable 802.3x based flow control settings. */
1657 mflcn_reg |= IXGBE_MFLCN_DPF;
1658 IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg);
1659 IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg);
1661 reg = IXGBE_READ_REG(hw, IXGBE_MTQC);
1662 /* Thresholds are different for link flow control when in DCB mode */
1663 if (reg & IXGBE_MTQC_RT_ENA) {
1664 /* Always disable XON for LFC when in DCB mode */
1665 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(packetbuf_num), 0);
1667 rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num));
1668 reg = (rx_pba_size >> 2) & 0xFFE0;
1669 if (hw->fc.current_mode & ixgbe_fc_tx_pause)
1670 reg |= IXGBE_FCRTH_FCEN;
1671 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num), reg);
1674 * Set up and enable Rx high/low water mark thresholds,
1677 if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
1678 if (hw->fc.send_xon) {
1680 IXGBE_FCRTL_82599(packetbuf_num),
1685 IXGBE_FCRTL_82599(packetbuf_num),
1689 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num),
1690 (hw->fc.high_water | IXGBE_FCRTH_FCEN));
1694 /* Configure pause time (2 TCs per register) */
1695 reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
1696 if ((packetbuf_num & 1) == 0)
1697 reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
1699 reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
1700 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
1702 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
1709 * ixgbe_fc_autoneg - Configure flow control
1710 * @hw: pointer to hardware structure
1712 * Negotiates flow control capabilities with link partner using autoneg and
1713 * applies the results.
1715 s32 ixgbe_fc_autoneg(struct ixgbe_hw *hw)
1718 u32 i, reg, pcs_anadv_reg, pcs_lpab_reg;
1720 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
1723 * The possible values of fc.current_mode are:
1724 * 0: Flow control is completely disabled
1725 * 1: Rx flow control is enabled (we can receive pause frames,
1726 * but not send pause frames).
1727 * 2: Tx flow control is enabled (we can send pause frames but
1728 * we do not support receiving pause frames).
1729 * 3: Both Rx and Tx flow control (symmetric) are enabled.
1730 * 4: Priority Flow Control is enabled.
1733 switch (hw->fc.current_mode) {
1735 /* Flow control completely disabled by software override. */
1736 reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
1738 case ixgbe_fc_rx_pause:
1740 * Rx Flow control is enabled and Tx Flow control is
1741 * disabled by software override. Since there really
1742 * isn't a way to advertise that we are capable of RX
1743 * Pause ONLY, we will advertise that we support both
1744 * symmetric and asymmetric Rx PAUSE. Later, we will
1745 * disable the adapter's ability to send PAUSE frames.
1747 reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
1749 case ixgbe_fc_tx_pause:
1751 * Tx Flow control is enabled, and Rx Flow control is
1752 * disabled by software override.
1754 reg |= (IXGBE_PCS1GANA_ASM_PAUSE);
1755 reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE);
1758 /* Flow control (both Rx and Tx) is enabled by SW override. */
1759 reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
1767 hw_dbg(hw, "Flow control param set incorrectly\n");
1768 ret_val = -IXGBE_ERR_CONFIG;
1773 IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg);
1774 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
1776 /* Set PCS register for autoneg */
1777 /* Enable and restart autoneg */
1778 reg |= IXGBE_PCS1GLCTL_AN_ENABLE | IXGBE_PCS1GLCTL_AN_RESTART;
1780 /* Disable AN timeout */
1781 if (hw->fc.strict_ieee)
1782 reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN;
1784 hw_dbg(hw, "Configuring Autoneg; PCS_LCTL = 0x%08X\n", reg);
1785 IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg);
1787 /* See if autonegotiation has succeeded */
1788 hw->mac.autoneg_succeeded = 0;
1789 for (i = 0; i < FIBER_LINK_UP_LIMIT; i++) {
1791 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
1792 if ((reg & (IXGBE_PCS1GLSTA_LINK_OK |
1793 IXGBE_PCS1GLSTA_AN_COMPLETE)) ==
1794 (IXGBE_PCS1GLSTA_LINK_OK |
1795 IXGBE_PCS1GLSTA_AN_COMPLETE)) {
1796 if (!(reg & IXGBE_PCS1GLSTA_AN_TIMED_OUT))
1797 hw->mac.autoneg_succeeded = 1;
1802 if (!hw->mac.autoneg_succeeded) {
1803 /* Autoneg failed to achieve a link, so we turn fc off */
1804 hw->fc.current_mode = ixgbe_fc_none;
1805 hw_dbg(hw, "Flow Control = NONE.\n");
1810 * Read the AN advertisement and LP ability registers and resolve
1811 * local flow control settings accordingly
1813 pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
1814 pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
1815 if ((pcs_anadv_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
1816 (pcs_lpab_reg & IXGBE_PCS1GANA_SYM_PAUSE)) {
1818 * Now we need to check if the user selected Rx ONLY
1819 * of pause frames. In this case, we had to advertise
1820 * FULL flow control because we could not advertise RX
1821 * ONLY. Hence, we must now check to see if we need to
1822 * turn OFF the TRANSMISSION of PAUSE frames.
1824 if (hw->fc.requested_mode == ixgbe_fc_full) {
1825 hw->fc.current_mode = ixgbe_fc_full;
1826 hw_dbg(hw, "Flow Control = FULL.\n");
1828 hw->fc.current_mode = ixgbe_fc_rx_pause;
1829 hw_dbg(hw, "Flow Control = RX PAUSE frames only.\n");
1831 } else if (!(pcs_anadv_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
1832 (pcs_anadv_reg & IXGBE_PCS1GANA_ASM_PAUSE) &&
1833 (pcs_lpab_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
1834 (pcs_lpab_reg & IXGBE_PCS1GANA_ASM_PAUSE)) {
1835 hw->fc.current_mode = ixgbe_fc_tx_pause;
1836 hw_dbg(hw, "Flow Control = TX PAUSE frames only.\n");
1837 } else if ((pcs_anadv_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
1838 (pcs_anadv_reg & IXGBE_PCS1GANA_ASM_PAUSE) &&
1839 !(pcs_lpab_reg & IXGBE_PCS1GANA_SYM_PAUSE) &&
1840 (pcs_lpab_reg & IXGBE_PCS1GANA_ASM_PAUSE)) {
1841 hw->fc.current_mode = ixgbe_fc_rx_pause;
1842 hw_dbg(hw, "Flow Control = RX PAUSE frames only.\n");
1844 hw->fc.current_mode = ixgbe_fc_none;
1845 hw_dbg(hw, "Flow Control = NONE.\n");
1853 * ixgbe_setup_fc_generic - Set up flow control
1854 * @hw: pointer to hardware structure
1856 * Sets up flow control.
1858 s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw, s32 packetbuf_num)
1861 ixgbe_link_speed speed;
1865 if (hw->fc.requested_mode == ixgbe_fc_pfc) {
1866 hw->fc.current_mode = hw->fc.requested_mode;
1871 /* Validate the packetbuf configuration */
1872 if (packetbuf_num < 0 || packetbuf_num > 7) {
1873 hw_dbg(hw, "Invalid packet buffer number [%d], expected range "
1874 "is 0-7\n", packetbuf_num);
1875 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
1880 * Validate the water mark configuration. Zero water marks are invalid
1881 * because it causes the controller to just blast out fc packets.
1883 if (!hw->fc.low_water || !hw->fc.high_water || !hw->fc.pause_time) {
1884 if (hw->fc.requested_mode != ixgbe_fc_none) {
1885 hw_dbg(hw, "Invalid water mark configuration\n");
1886 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
1892 * Validate the requested mode. Strict IEEE mode does not allow
1893 * ixgbe_fc_rx_pause because it will cause testing anomalies.
1895 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
1896 hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict "
1898 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
1903 * 10gig parts do not have a word in the EEPROM to determine the
1904 * default flow control setting, so we explicitly set it to full.
1906 if (hw->fc.requested_mode == ixgbe_fc_default)
1907 hw->fc.requested_mode = ixgbe_fc_full;
1910 * Save off the requested flow control mode for use later. Depending
1911 * on the link partner's capabilities, we may or may not use this mode.
1913 hw->fc.current_mode = hw->fc.requested_mode;
1915 /* Decide whether to use autoneg or not. */
1916 hw->mac.ops.check_link(hw, &speed, &link_up, false);
1917 if (!hw->fc.disable_fc_autoneg && hw->phy.multispeed_fiber &&
1918 (speed == IXGBE_LINK_SPEED_1GB_FULL))
1919 ret_val = ixgbe_fc_autoneg(hw);
1924 ret_val = ixgbe_fc_enable(hw, packetbuf_num);
1931 * ixgbe_disable_pcie_master - Disable PCI-express master access
1932 * @hw: pointer to hardware structure
1934 * Disables PCI-Express master access and verifies there are no pending
1935 * requests. IXGBE_ERR_MASTER_REQUESTS_PENDING is returned if master disable
1936 * bit hasn't caused the master requests to be disabled, else 0
1937 * is returned signifying master requests disabled.
1939 s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
1943 u32 number_of_queues;
1944 s32 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
1946 /* Disable the receive unit by stopping each queue */
1947 number_of_queues = hw->mac.max_rx_queues;
1948 for (i = 0; i < number_of_queues; i++) {
1949 reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
1950 if (reg_val & IXGBE_RXDCTL_ENABLE) {
1951 reg_val &= ~IXGBE_RXDCTL_ENABLE;
1952 IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val);
1956 reg_val = IXGBE_READ_REG(hw, IXGBE_CTRL);
1957 reg_val |= IXGBE_CTRL_GIO_DIS;
1958 IXGBE_WRITE_REG(hw, IXGBE_CTRL, reg_val);
1960 for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) {
1961 if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO)) {
1973 * ixgbe_acquire_swfw_sync - Acquire SWFW semaphore
1974 * @hw: pointer to hardware structure
1975 * @mask: Mask to specify which semaphore to acquire
1977 * Acquires the SWFW semaphore thought the GSSR register for the specified
1978 * function (CSR, PHY0, PHY1, EEPROM, Flash)
1980 s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask)
1984 u32 fwmask = mask << 5;
1988 if (ixgbe_get_eeprom_semaphore(hw))
1989 return -IXGBE_ERR_SWFW_SYNC;
1991 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
1992 if (!(gssr & (fwmask | swmask)))
1996 * Firmware currently using resource (fwmask) or other software
1997 * thread currently using resource (swmask)
1999 ixgbe_release_eeprom_semaphore(hw);
2005 hw_dbg(hw, "Driver can't access resource, GSSR timeout.\n");
2006 return -IXGBE_ERR_SWFW_SYNC;
2010 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
2012 ixgbe_release_eeprom_semaphore(hw);
2017 * ixgbe_release_swfw_sync - Release SWFW semaphore
2018 * @hw: pointer to hardware structure
2019 * @mask: Mask to specify which semaphore to release
2021 * Releases the SWFW semaphore thought the GSSR register for the specified
2022 * function (CSR, PHY0, PHY1, EEPROM, Flash)
2024 void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u16 mask)
2029 ixgbe_get_eeprom_semaphore(hw);
2031 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
2033 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
2035 ixgbe_release_eeprom_semaphore(hw);
2039 * ixgbe_enable_rx_dma_generic - Enable the Rx DMA unit
2040 * @hw: pointer to hardware structure
2041 * @regval: register value to write to RXCTRL
2043 * Enables the Rx DMA unit
2045 s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval)
2047 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval);
2053 * ixgbe_blink_led_start_generic - Blink LED based on index.
2054 * @hw: pointer to hardware structure
2055 * @index: led number to blink
2057 s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
2059 ixgbe_link_speed speed = 0;
2061 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2062 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
2065 * Link must be up to auto-blink the LEDs;
2066 * Force it if link is down.
2068 hw->mac.ops.check_link(hw, &speed, &link_up, false);
2071 autoc_reg |= IXGBE_AUTOC_FLU;
2072 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2076 led_reg &= ~IXGBE_LED_MODE_MASK(index);
2077 led_reg |= IXGBE_LED_BLINK(index);
2078 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
2079 IXGBE_WRITE_FLUSH(hw);
2085 * ixgbe_blink_led_stop_generic - Stop blinking LED based on index.
2086 * @hw: pointer to hardware structure
2087 * @index: led number to stop blinking
2089 s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
2091 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2092 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
2094 autoc_reg &= ~IXGBE_AUTOC_FLU;
2095 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2096 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2098 led_reg &= ~IXGBE_LED_MODE_MASK(index);
2099 led_reg &= ~IXGBE_LED_BLINK(index);
2100 led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
2101 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
2102 IXGBE_WRITE_FLUSH(hw);