1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2016 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
29 #include <linux/pci.h>
30 #include <linux/delay.h>
31 #include <linux/sched.h>
32 #include <linux/netdevice.h>
35 #include "ixgbe_common.h"
36 #include "ixgbe_phy.h"
38 static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw);
39 static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw);
40 static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw);
41 static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw);
42 static void ixgbe_standby_eeprom(struct ixgbe_hw *hw);
43 static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
45 static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count);
46 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
47 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
48 static void ixgbe_release_eeprom(struct ixgbe_hw *hw);
50 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
51 static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg);
52 static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
53 u16 words, u16 *data);
54 static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
55 u16 words, u16 *data);
56 static s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw,
58 static s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw);
60 /* Base table for registers values that change by MAC */
61 const u32 ixgbe_mvals_8259X[IXGBE_MVALS_IDX_LIMIT] = {
62 IXGBE_MVALS_INIT(8259X)
66 * ixgbe_device_supports_autoneg_fc - Check if phy supports autoneg flow
68 * @hw: pointer to hardware structure
70 * There are several phys that do not support autoneg flow control. This
71 * function check the device id to see if the associated phy supports
72 * autoneg flow control.
74 bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
76 bool supported = false;
77 ixgbe_link_speed speed;
80 switch (hw->phy.media_type) {
81 case ixgbe_media_type_fiber:
82 /* flow control autoneg black list */
83 switch (hw->device_id) {
84 case IXGBE_DEV_ID_X550EM_A_SFP:
85 case IXGBE_DEV_ID_X550EM_A_SFP_N:
89 hw->mac.ops.check_link(hw, &speed, &link_up, false);
90 /* if link is down, assume supported */
92 supported = speed == IXGBE_LINK_SPEED_1GB_FULL ?
99 case ixgbe_media_type_backplane:
100 if (hw->device_id == IXGBE_DEV_ID_X550EM_X_XFI)
105 case ixgbe_media_type_copper:
106 /* only some copper devices support flow control autoneg */
107 switch (hw->device_id) {
108 case IXGBE_DEV_ID_82599_T3_LOM:
109 case IXGBE_DEV_ID_X540T:
110 case IXGBE_DEV_ID_X540T1:
111 case IXGBE_DEV_ID_X550T:
112 case IXGBE_DEV_ID_X550T1:
113 case IXGBE_DEV_ID_X550EM_X_10G_T:
114 case IXGBE_DEV_ID_X550EM_A_10G_T:
115 case IXGBE_DEV_ID_X550EM_A_1G_T:
116 case IXGBE_DEV_ID_X550EM_A_1G_T_L:
127 hw_dbg(hw, "Device %x does not support flow control autoneg\n",
134 * ixgbe_setup_fc_generic - Set up flow control
135 * @hw: pointer to hardware structure
137 * Called at init time to set up flow control.
139 s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
142 u32 reg = 0, reg_bp = 0;
147 * Validate the requested mode. Strict IEEE mode does not allow
148 * ixgbe_fc_rx_pause because it will cause us to fail at UNH.
150 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
151 hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
152 return IXGBE_ERR_INVALID_LINK_SETTINGS;
156 * 10gig parts do not have a word in the EEPROM to determine the
157 * default flow control setting, so we explicitly set it to full.
159 if (hw->fc.requested_mode == ixgbe_fc_default)
160 hw->fc.requested_mode = ixgbe_fc_full;
163 * Set up the 1G and 10G flow control advertisement registers so the
164 * HW will be able to do fc autoneg once the cable is plugged in. If
165 * we link at 10G, the 1G advertisement is harmless and vice versa.
167 switch (hw->phy.media_type) {
168 case ixgbe_media_type_backplane:
169 /* some MAC's need RMW protection on AUTOC */
170 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, ®_bp);
174 /* fall through - only backplane uses autoc */
175 case ixgbe_media_type_fiber:
176 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
179 case ixgbe_media_type_copper:
180 hw->phy.ops.read_reg(hw, MDIO_AN_ADVERTISE,
181 MDIO_MMD_AN, ®_cu);
188 * The possible values of fc.requested_mode are:
189 * 0: Flow control is completely disabled
190 * 1: Rx flow control is enabled (we can receive pause frames,
191 * but not send pause frames).
192 * 2: Tx flow control is enabled (we can send pause frames but
193 * we do not support receiving pause frames).
194 * 3: Both Rx and Tx flow control (symmetric) are enabled.
197 switch (hw->fc.requested_mode) {
199 /* Flow control completely disabled by software override. */
200 reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
201 if (hw->phy.media_type == ixgbe_media_type_backplane)
202 reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE |
203 IXGBE_AUTOC_ASM_PAUSE);
204 else if (hw->phy.media_type == ixgbe_media_type_copper)
205 reg_cu &= ~(IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE);
207 case ixgbe_fc_tx_pause:
209 * Tx Flow control is enabled, and Rx Flow control is
210 * disabled by software override.
212 reg |= IXGBE_PCS1GANA_ASM_PAUSE;
213 reg &= ~IXGBE_PCS1GANA_SYM_PAUSE;
214 if (hw->phy.media_type == ixgbe_media_type_backplane) {
215 reg_bp |= IXGBE_AUTOC_ASM_PAUSE;
216 reg_bp &= ~IXGBE_AUTOC_SYM_PAUSE;
217 } else if (hw->phy.media_type == ixgbe_media_type_copper) {
218 reg_cu |= IXGBE_TAF_ASM_PAUSE;
219 reg_cu &= ~IXGBE_TAF_SYM_PAUSE;
222 case ixgbe_fc_rx_pause:
224 * Rx Flow control is enabled and Tx Flow control is
225 * disabled by software override. Since there really
226 * isn't a way to advertise that we are capable of RX
227 * Pause ONLY, we will advertise that we support both
228 * symmetric and asymmetric Rx PAUSE, as such we fall
229 * through to the fc_full statement. Later, we will
230 * disable the adapter's ability to send PAUSE frames.
233 /* Flow control (both Rx and Tx) is enabled by SW override. */
234 reg |= IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE;
235 if (hw->phy.media_type == ixgbe_media_type_backplane)
236 reg_bp |= IXGBE_AUTOC_SYM_PAUSE |
237 IXGBE_AUTOC_ASM_PAUSE;
238 else if (hw->phy.media_type == ixgbe_media_type_copper)
239 reg_cu |= IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE;
242 hw_dbg(hw, "Flow control param set incorrectly\n");
243 return IXGBE_ERR_CONFIG;
246 if (hw->mac.type != ixgbe_mac_X540) {
248 * Enable auto-negotiation between the MAC & PHY;
249 * the MAC will advertise clause 37 flow control.
251 IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg);
252 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
254 /* Disable AN timeout */
255 if (hw->fc.strict_ieee)
256 reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN;
258 IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg);
259 hw_dbg(hw, "Set up FC; PCS1GLCTL = 0x%08X\n", reg);
263 * AUTOC restart handles negotiation of 1G and 10G on backplane
264 * and copper. There is no need to set the PCS1GCTL register.
267 if (hw->phy.media_type == ixgbe_media_type_backplane) {
268 /* Need the SW/FW semaphore around AUTOC writes if 82599 and
269 * LESM is on, likewise reset_pipeline requries the lock as
270 * it also writes AUTOC.
272 ret_val = hw->mac.ops.prot_autoc_write(hw, reg_bp, locked);
276 } else if ((hw->phy.media_type == ixgbe_media_type_copper) &&
277 ixgbe_device_supports_autoneg_fc(hw)) {
278 hw->phy.ops.write_reg(hw, MDIO_AN_ADVERTISE,
279 MDIO_MMD_AN, reg_cu);
282 hw_dbg(hw, "Set up FC; IXGBE_AUTOC = 0x%08X\n", reg);
287 * ixgbe_start_hw_generic - Prepare hardware for Tx/Rx
288 * @hw: pointer to hardware structure
290 * Starts the hardware by filling the bus info structure and media type, clears
291 * all on chip counters, initializes receive address registers, multicast
292 * table, VLAN filter table, calls routine to set up link and flow control
293 * settings, and leaves transmit and receive units disabled and uninitialized
295 s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
301 /* Set the media type */
302 hw->phy.media_type = hw->mac.ops.get_media_type(hw);
304 /* Identify the PHY */
305 hw->phy.ops.identify(hw);
307 /* Clear the VLAN filter table */
308 hw->mac.ops.clear_vfta(hw);
310 /* Clear statistics registers */
311 hw->mac.ops.clear_hw_cntrs(hw);
313 /* Set No Snoop Disable */
314 ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
315 ctrl_ext |= IXGBE_CTRL_EXT_NS_DIS;
316 IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
317 IXGBE_WRITE_FLUSH(hw);
319 /* Setup flow control if method for doing so */
320 if (hw->mac.ops.setup_fc) {
321 ret_val = hw->mac.ops.setup_fc(hw);
326 /* Cashe bit indicating need for crosstalk fix */
327 switch (hw->mac.type) {
328 case ixgbe_mac_82599EB:
329 case ixgbe_mac_X550EM_x:
330 case ixgbe_mac_x550em_a:
331 hw->mac.ops.get_device_caps(hw, &device_caps);
332 if (device_caps & IXGBE_DEVICE_CAPS_NO_CROSSTALK_WR)
333 hw->need_crosstalk_fix = false;
335 hw->need_crosstalk_fix = true;
338 hw->need_crosstalk_fix = false;
342 /* Clear adapter stopped flag */
343 hw->adapter_stopped = false;
349 * ixgbe_start_hw_gen2 - Init sequence for common device family
350 * @hw: pointer to hw structure
352 * Performs the init sequence common to the second generation
354 * Devices in the second generation:
358 s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw)
362 /* Clear the rate limiters */
363 for (i = 0; i < hw->mac.max_tx_queues; i++) {
364 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i);
365 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0);
367 IXGBE_WRITE_FLUSH(hw);
373 * ixgbe_init_hw_generic - Generic hardware initialization
374 * @hw: pointer to hardware structure
376 * Initialize the hardware by resetting the hardware, filling the bus info
377 * structure and media type, clears all on chip counters, initializes receive
378 * address registers, multicast table, VLAN filter table, calls routine to set
379 * up link and flow control settings, and leaves transmit and receive units
380 * disabled and uninitialized
382 s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw)
386 /* Reset the hardware */
387 status = hw->mac.ops.reset_hw(hw);
391 status = hw->mac.ops.start_hw(hw);
394 /* Initialize the LED link active for LED blink support */
395 if (hw->mac.ops.init_led_link_act)
396 hw->mac.ops.init_led_link_act(hw);
402 * ixgbe_clear_hw_cntrs_generic - Generic clear hardware counters
403 * @hw: pointer to hardware structure
405 * Clears all hardware statistics counters by reading them from the hardware
406 * Statistics counters are clear on read.
408 s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
412 IXGBE_READ_REG(hw, IXGBE_CRCERRS);
413 IXGBE_READ_REG(hw, IXGBE_ILLERRC);
414 IXGBE_READ_REG(hw, IXGBE_ERRBC);
415 IXGBE_READ_REG(hw, IXGBE_MSPDC);
416 for (i = 0; i < 8; i++)
417 IXGBE_READ_REG(hw, IXGBE_MPC(i));
419 IXGBE_READ_REG(hw, IXGBE_MLFC);
420 IXGBE_READ_REG(hw, IXGBE_MRFC);
421 IXGBE_READ_REG(hw, IXGBE_RLEC);
422 IXGBE_READ_REG(hw, IXGBE_LXONTXC);
423 IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
424 if (hw->mac.type >= ixgbe_mac_82599EB) {
425 IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
426 IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
428 IXGBE_READ_REG(hw, IXGBE_LXONRXC);
429 IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
432 for (i = 0; i < 8; i++) {
433 IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
434 IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
435 if (hw->mac.type >= ixgbe_mac_82599EB) {
436 IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i));
437 IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i));
439 IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
440 IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
443 if (hw->mac.type >= ixgbe_mac_82599EB)
444 for (i = 0; i < 8; i++)
445 IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i));
446 IXGBE_READ_REG(hw, IXGBE_PRC64);
447 IXGBE_READ_REG(hw, IXGBE_PRC127);
448 IXGBE_READ_REG(hw, IXGBE_PRC255);
449 IXGBE_READ_REG(hw, IXGBE_PRC511);
450 IXGBE_READ_REG(hw, IXGBE_PRC1023);
451 IXGBE_READ_REG(hw, IXGBE_PRC1522);
452 IXGBE_READ_REG(hw, IXGBE_GPRC);
453 IXGBE_READ_REG(hw, IXGBE_BPRC);
454 IXGBE_READ_REG(hw, IXGBE_MPRC);
455 IXGBE_READ_REG(hw, IXGBE_GPTC);
456 IXGBE_READ_REG(hw, IXGBE_GORCL);
457 IXGBE_READ_REG(hw, IXGBE_GORCH);
458 IXGBE_READ_REG(hw, IXGBE_GOTCL);
459 IXGBE_READ_REG(hw, IXGBE_GOTCH);
460 if (hw->mac.type == ixgbe_mac_82598EB)
461 for (i = 0; i < 8; i++)
462 IXGBE_READ_REG(hw, IXGBE_RNBC(i));
463 IXGBE_READ_REG(hw, IXGBE_RUC);
464 IXGBE_READ_REG(hw, IXGBE_RFC);
465 IXGBE_READ_REG(hw, IXGBE_ROC);
466 IXGBE_READ_REG(hw, IXGBE_RJC);
467 IXGBE_READ_REG(hw, IXGBE_MNGPRC);
468 IXGBE_READ_REG(hw, IXGBE_MNGPDC);
469 IXGBE_READ_REG(hw, IXGBE_MNGPTC);
470 IXGBE_READ_REG(hw, IXGBE_TORL);
471 IXGBE_READ_REG(hw, IXGBE_TORH);
472 IXGBE_READ_REG(hw, IXGBE_TPR);
473 IXGBE_READ_REG(hw, IXGBE_TPT);
474 IXGBE_READ_REG(hw, IXGBE_PTC64);
475 IXGBE_READ_REG(hw, IXGBE_PTC127);
476 IXGBE_READ_REG(hw, IXGBE_PTC255);
477 IXGBE_READ_REG(hw, IXGBE_PTC511);
478 IXGBE_READ_REG(hw, IXGBE_PTC1023);
479 IXGBE_READ_REG(hw, IXGBE_PTC1522);
480 IXGBE_READ_REG(hw, IXGBE_MPTC);
481 IXGBE_READ_REG(hw, IXGBE_BPTC);
482 for (i = 0; i < 16; i++) {
483 IXGBE_READ_REG(hw, IXGBE_QPRC(i));
484 IXGBE_READ_REG(hw, IXGBE_QPTC(i));
485 if (hw->mac.type >= ixgbe_mac_82599EB) {
486 IXGBE_READ_REG(hw, IXGBE_QBRC_L(i));
487 IXGBE_READ_REG(hw, IXGBE_QBRC_H(i));
488 IXGBE_READ_REG(hw, IXGBE_QBTC_L(i));
489 IXGBE_READ_REG(hw, IXGBE_QBTC_H(i));
490 IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
492 IXGBE_READ_REG(hw, IXGBE_QBRC(i));
493 IXGBE_READ_REG(hw, IXGBE_QBTC(i));
497 if (hw->mac.type == ixgbe_mac_X550 || hw->mac.type == ixgbe_mac_X540) {
499 hw->phy.ops.identify(hw);
500 hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECL, MDIO_MMD_PCS, &i);
501 hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECH, MDIO_MMD_PCS, &i);
502 hw->phy.ops.read_reg(hw, IXGBE_LDPCECL, MDIO_MMD_PCS, &i);
503 hw->phy.ops.read_reg(hw, IXGBE_LDPCECH, MDIO_MMD_PCS, &i);
510 * ixgbe_read_pba_string_generic - Reads part number string from EEPROM
511 * @hw: pointer to hardware structure
512 * @pba_num: stores the part number string from the EEPROM
513 * @pba_num_size: part number string buffer length
515 * Reads the part number string from the EEPROM.
517 s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
526 if (pba_num == NULL) {
527 hw_dbg(hw, "PBA string buffer was null\n");
528 return IXGBE_ERR_INVALID_ARGUMENT;
531 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
533 hw_dbg(hw, "NVM Read Error\n");
537 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &pba_ptr);
539 hw_dbg(hw, "NVM Read Error\n");
544 * if data is not ptr guard the PBA must be in legacy format which
545 * means pba_ptr is actually our second data word for the PBA number
546 * and we can decode it into an ascii string
548 if (data != IXGBE_PBANUM_PTR_GUARD) {
549 hw_dbg(hw, "NVM PBA number is not stored as string\n");
551 /* we will need 11 characters to store the PBA */
552 if (pba_num_size < 11) {
553 hw_dbg(hw, "PBA string buffer too small\n");
554 return IXGBE_ERR_NO_SPACE;
557 /* extract hex string from data and pba_ptr */
558 pba_num[0] = (data >> 12) & 0xF;
559 pba_num[1] = (data >> 8) & 0xF;
560 pba_num[2] = (data >> 4) & 0xF;
561 pba_num[3] = data & 0xF;
562 pba_num[4] = (pba_ptr >> 12) & 0xF;
563 pba_num[5] = (pba_ptr >> 8) & 0xF;
566 pba_num[8] = (pba_ptr >> 4) & 0xF;
567 pba_num[9] = pba_ptr & 0xF;
569 /* put a null character on the end of our string */
572 /* switch all the data but the '-' to hex char */
573 for (offset = 0; offset < 10; offset++) {
574 if (pba_num[offset] < 0xA)
575 pba_num[offset] += '0';
576 else if (pba_num[offset] < 0x10)
577 pba_num[offset] += 'A' - 0xA;
583 ret_val = hw->eeprom.ops.read(hw, pba_ptr, &length);
585 hw_dbg(hw, "NVM Read Error\n");
589 if (length == 0xFFFF || length == 0) {
590 hw_dbg(hw, "NVM PBA number section invalid length\n");
591 return IXGBE_ERR_PBA_SECTION;
594 /* check if pba_num buffer is big enough */
595 if (pba_num_size < (((u32)length * 2) - 1)) {
596 hw_dbg(hw, "PBA string buffer too small\n");
597 return IXGBE_ERR_NO_SPACE;
600 /* trim pba length from start of string */
604 for (offset = 0; offset < length; offset++) {
605 ret_val = hw->eeprom.ops.read(hw, pba_ptr + offset, &data);
607 hw_dbg(hw, "NVM Read Error\n");
610 pba_num[offset * 2] = (u8)(data >> 8);
611 pba_num[(offset * 2) + 1] = (u8)(data & 0xFF);
613 pba_num[offset * 2] = '\0';
619 * ixgbe_get_mac_addr_generic - Generic get MAC address
620 * @hw: pointer to hardware structure
621 * @mac_addr: Adapter MAC address
623 * Reads the adapter's MAC address from first Receive Address Register (RAR0)
624 * A reset of the adapter must be performed prior to calling this function
625 * in order for the MAC address to have been loaded from the EEPROM into RAR0
627 s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr)
633 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(0));
634 rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(0));
636 for (i = 0; i < 4; i++)
637 mac_addr[i] = (u8)(rar_low >> (i*8));
639 for (i = 0; i < 2; i++)
640 mac_addr[i+4] = (u8)(rar_high >> (i*8));
645 enum ixgbe_bus_width ixgbe_convert_bus_width(u16 link_status)
647 switch (link_status & IXGBE_PCI_LINK_WIDTH) {
648 case IXGBE_PCI_LINK_WIDTH_1:
649 return ixgbe_bus_width_pcie_x1;
650 case IXGBE_PCI_LINK_WIDTH_2:
651 return ixgbe_bus_width_pcie_x2;
652 case IXGBE_PCI_LINK_WIDTH_4:
653 return ixgbe_bus_width_pcie_x4;
654 case IXGBE_PCI_LINK_WIDTH_8:
655 return ixgbe_bus_width_pcie_x8;
657 return ixgbe_bus_width_unknown;
661 enum ixgbe_bus_speed ixgbe_convert_bus_speed(u16 link_status)
663 switch (link_status & IXGBE_PCI_LINK_SPEED) {
664 case IXGBE_PCI_LINK_SPEED_2500:
665 return ixgbe_bus_speed_2500;
666 case IXGBE_PCI_LINK_SPEED_5000:
667 return ixgbe_bus_speed_5000;
668 case IXGBE_PCI_LINK_SPEED_8000:
669 return ixgbe_bus_speed_8000;
671 return ixgbe_bus_speed_unknown;
676 * ixgbe_get_bus_info_generic - Generic set PCI bus info
677 * @hw: pointer to hardware structure
679 * Sets the PCI bus info (speed, width, type) within the ixgbe_hw structure
681 s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw)
685 hw->bus.type = ixgbe_bus_type_pci_express;
687 /* Get the negotiated link width and speed from PCI config space */
688 link_status = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_LINK_STATUS);
690 hw->bus.width = ixgbe_convert_bus_width(link_status);
691 hw->bus.speed = ixgbe_convert_bus_speed(link_status);
693 hw->mac.ops.set_lan_id(hw);
699 * ixgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
700 * @hw: pointer to the HW structure
702 * Determines the LAN function id by reading memory-mapped registers
703 * and swaps the port value if requested.
705 void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw)
707 struct ixgbe_bus_info *bus = &hw->bus;
711 reg = IXGBE_READ_REG(hw, IXGBE_STATUS);
712 bus->func = (reg & IXGBE_STATUS_LAN_ID) >> IXGBE_STATUS_LAN_ID_SHIFT;
713 bus->lan_id = bus->func;
715 /* check for a port swap */
716 reg = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw));
717 if (reg & IXGBE_FACTPS_LFS)
720 /* Get MAC instance from EEPROM for configuring CS4227 */
721 if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SFP) {
722 hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_4, &ee_ctrl_4);
723 bus->instance_id = (ee_ctrl_4 & IXGBE_EE_CTRL_4_INST_ID) >>
724 IXGBE_EE_CTRL_4_INST_ID_SHIFT;
729 * ixgbe_stop_adapter_generic - Generic stop Tx/Rx units
730 * @hw: pointer to hardware structure
732 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
733 * disables transmit and receive units. The adapter_stopped flag is used by
734 * the shared code and drivers to determine if the adapter is in a stopped
735 * state and should not touch the hardware.
737 s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw)
743 * Set the adapter_stopped flag so other driver functions stop touching
746 hw->adapter_stopped = true;
748 /* Disable the receive unit */
749 hw->mac.ops.disable_rx(hw);
751 /* Clear interrupt mask to stop interrupts from being generated */
752 IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK);
754 /* Clear any pending interrupts, flush previous writes */
755 IXGBE_READ_REG(hw, IXGBE_EICR);
757 /* Disable the transmit unit. Each queue must be disabled. */
758 for (i = 0; i < hw->mac.max_tx_queues; i++)
759 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(i), IXGBE_TXDCTL_SWFLSH);
761 /* Disable the receive unit by stopping each queue */
762 for (i = 0; i < hw->mac.max_rx_queues; i++) {
763 reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
764 reg_val &= ~IXGBE_RXDCTL_ENABLE;
765 reg_val |= IXGBE_RXDCTL_SWFLSH;
766 IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val);
769 /* flush all queues disables */
770 IXGBE_WRITE_FLUSH(hw);
771 usleep_range(1000, 2000);
774 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
775 * access and verify no pending requests
777 return ixgbe_disable_pcie_master(hw);
781 * ixgbe_init_led_link_act_generic - Store the LED index link/activity.
782 * @hw: pointer to hardware structure
784 * Store the index for the link active LED. This will be used to support
787 s32 ixgbe_init_led_link_act_generic(struct ixgbe_hw *hw)
789 struct ixgbe_mac_info *mac = &hw->mac;
790 u32 led_reg, led_mode;
793 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
795 /* Get LED link active from the LEDCTL register */
796 for (i = 0; i < 4; i++) {
797 led_mode = led_reg >> IXGBE_LED_MODE_SHIFT(i);
799 if ((led_mode & IXGBE_LED_MODE_MASK_BASE) ==
800 IXGBE_LED_LINK_ACTIVE) {
801 mac->led_link_act = i;
806 /* If LEDCTL register does not have the LED link active set, then use
807 * known MAC defaults.
809 switch (hw->mac.type) {
810 case ixgbe_mac_x550em_a:
811 mac->led_link_act = 0;
813 case ixgbe_mac_X550EM_x:
814 mac->led_link_act = 1;
817 mac->led_link_act = 2;
824 * ixgbe_led_on_generic - Turns on the software controllable LEDs.
825 * @hw: pointer to hardware structure
826 * @index: led number to turn on
828 s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
830 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
833 return IXGBE_ERR_PARAM;
835 /* To turn on the LED, set mode to ON. */
836 led_reg &= ~IXGBE_LED_MODE_MASK(index);
837 led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index);
838 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
839 IXGBE_WRITE_FLUSH(hw);
845 * ixgbe_led_off_generic - Turns off the software controllable LEDs.
846 * @hw: pointer to hardware structure
847 * @index: led number to turn off
849 s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
851 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
854 return IXGBE_ERR_PARAM;
856 /* To turn off the LED, set mode to OFF. */
857 led_reg &= ~IXGBE_LED_MODE_MASK(index);
858 led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index);
859 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
860 IXGBE_WRITE_FLUSH(hw);
866 * ixgbe_init_eeprom_params_generic - Initialize EEPROM params
867 * @hw: pointer to hardware structure
869 * Initializes the EEPROM parameters ixgbe_eeprom_info within the
870 * ixgbe_hw struct in order to set up EEPROM access.
872 s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw)
874 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
878 if (eeprom->type == ixgbe_eeprom_uninitialized) {
879 eeprom->type = ixgbe_eeprom_none;
880 /* Set default semaphore delay to 10ms which is a well
882 eeprom->semaphore_delay = 10;
883 /* Clear EEPROM page size, it will be initialized as needed */
884 eeprom->word_page_size = 0;
887 * Check for EEPROM present first.
888 * If not present leave as none
890 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
891 if (eec & IXGBE_EEC_PRES) {
892 eeprom->type = ixgbe_eeprom_spi;
895 * SPI EEPROM is assumed here. This code would need to
896 * change if a future EEPROM is not SPI.
898 eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >>
899 IXGBE_EEC_SIZE_SHIFT);
900 eeprom->word_size = BIT(eeprom_size +
901 IXGBE_EEPROM_WORD_SIZE_SHIFT);
904 if (eec & IXGBE_EEC_ADDR_SIZE)
905 eeprom->address_bits = 16;
907 eeprom->address_bits = 8;
908 hw_dbg(hw, "Eeprom params: type = %d, size = %d, address bits: %d\n",
909 eeprom->type, eeprom->word_size, eeprom->address_bits);
916 * ixgbe_write_eeprom_buffer_bit_bang_generic - Write EEPROM using bit-bang
917 * @hw: pointer to hardware structure
918 * @offset: offset within the EEPROM to write
919 * @words: number of words
920 * @data: 16 bit word(s) to write to EEPROM
922 * Reads 16 bit word(s) from EEPROM through bit-bang method
924 s32 ixgbe_write_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
925 u16 words, u16 *data)
930 hw->eeprom.ops.init_params(hw);
933 return IXGBE_ERR_INVALID_ARGUMENT;
935 if (offset + words > hw->eeprom.word_size)
936 return IXGBE_ERR_EEPROM;
939 * The EEPROM page size cannot be queried from the chip. We do lazy
940 * initialization. It is worth to do that when we write large buffer.
942 if ((hw->eeprom.word_page_size == 0) &&
943 (words > IXGBE_EEPROM_PAGE_SIZE_MAX))
944 ixgbe_detect_eeprom_page_size_generic(hw, offset);
947 * We cannot hold synchronization semaphores for too long
948 * to avoid other entity starvation. However it is more efficient
949 * to read in bursts than synchronizing access for each word.
951 for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) {
952 count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ?
953 IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i);
954 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset + i,
965 * ixgbe_write_eeprom_buffer_bit_bang - Writes 16 bit word(s) to EEPROM
966 * @hw: pointer to hardware structure
967 * @offset: offset within the EEPROM to be written to
968 * @words: number of word(s)
969 * @data: 16 bit word(s) to be written to the EEPROM
971 * If ixgbe_eeprom_update_checksum is not called after this function, the
972 * EEPROM will most likely contain an invalid checksum.
974 static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
975 u16 words, u16 *data)
981 u8 write_opcode = IXGBE_EEPROM_WRITE_OPCODE_SPI;
983 /* Prepare the EEPROM for writing */
984 status = ixgbe_acquire_eeprom(hw);
988 if (ixgbe_ready_eeprom(hw) != 0) {
989 ixgbe_release_eeprom(hw);
990 return IXGBE_ERR_EEPROM;
993 for (i = 0; i < words; i++) {
994 ixgbe_standby_eeprom(hw);
996 /* Send the WRITE ENABLE command (8 bit opcode) */
997 ixgbe_shift_out_eeprom_bits(hw,
998 IXGBE_EEPROM_WREN_OPCODE_SPI,
999 IXGBE_EEPROM_OPCODE_BITS);
1001 ixgbe_standby_eeprom(hw);
1003 /* Some SPI eeproms use the 8th address bit embedded
1006 if ((hw->eeprom.address_bits == 8) &&
1007 ((offset + i) >= 128))
1008 write_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
1010 /* Send the Write command (8-bit opcode + addr) */
1011 ixgbe_shift_out_eeprom_bits(hw, write_opcode,
1012 IXGBE_EEPROM_OPCODE_BITS);
1013 ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2),
1014 hw->eeprom.address_bits);
1016 page_size = hw->eeprom.word_page_size;
1018 /* Send the data in burst via SPI */
1021 word = (word >> 8) | (word << 8);
1022 ixgbe_shift_out_eeprom_bits(hw, word, 16);
1027 /* do not wrap around page */
1028 if (((offset + i) & (page_size - 1)) ==
1031 } while (++i < words);
1033 ixgbe_standby_eeprom(hw);
1034 usleep_range(10000, 20000);
1036 /* Done with writing - release the EEPROM */
1037 ixgbe_release_eeprom(hw);
1043 * ixgbe_write_eeprom_generic - Writes 16 bit value to EEPROM
1044 * @hw: pointer to hardware structure
1045 * @offset: offset within the EEPROM to be written to
1046 * @data: 16 bit word to be written to the EEPROM
1048 * If ixgbe_eeprom_update_checksum is not called after this function, the
1049 * EEPROM will most likely contain an invalid checksum.
1051 s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
1053 hw->eeprom.ops.init_params(hw);
1055 if (offset >= hw->eeprom.word_size)
1056 return IXGBE_ERR_EEPROM;
1058 return ixgbe_write_eeprom_buffer_bit_bang(hw, offset, 1, &data);
1062 * ixgbe_read_eeprom_buffer_bit_bang_generic - Read EEPROM using bit-bang
1063 * @hw: pointer to hardware structure
1064 * @offset: offset within the EEPROM to be read
1065 * @words: number of word(s)
1066 * @data: read 16 bit words(s) from EEPROM
1068 * Reads 16 bit word(s) from EEPROM through bit-bang method
1070 s32 ixgbe_read_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1071 u16 words, u16 *data)
1076 hw->eeprom.ops.init_params(hw);
1079 return IXGBE_ERR_INVALID_ARGUMENT;
1081 if (offset + words > hw->eeprom.word_size)
1082 return IXGBE_ERR_EEPROM;
1085 * We cannot hold synchronization semaphores for too long
1086 * to avoid other entity starvation. However it is more efficient
1087 * to read in bursts than synchronizing access for each word.
1089 for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) {
1090 count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ?
1091 IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i);
1093 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset + i,
1104 * ixgbe_read_eeprom_buffer_bit_bang - Read EEPROM using bit-bang
1105 * @hw: pointer to hardware structure
1106 * @offset: offset within the EEPROM to be read
1107 * @words: number of word(s)
1108 * @data: read 16 bit word(s) from EEPROM
1110 * Reads 16 bit word(s) from EEPROM through bit-bang method
1112 static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
1113 u16 words, u16 *data)
1117 u8 read_opcode = IXGBE_EEPROM_READ_OPCODE_SPI;
1120 /* Prepare the EEPROM for reading */
1121 status = ixgbe_acquire_eeprom(hw);
1125 if (ixgbe_ready_eeprom(hw) != 0) {
1126 ixgbe_release_eeprom(hw);
1127 return IXGBE_ERR_EEPROM;
1130 for (i = 0; i < words; i++) {
1131 ixgbe_standby_eeprom(hw);
1132 /* Some SPI eeproms use the 8th address bit embedded
1135 if ((hw->eeprom.address_bits == 8) &&
1136 ((offset + i) >= 128))
1137 read_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
1139 /* Send the READ command (opcode + addr) */
1140 ixgbe_shift_out_eeprom_bits(hw, read_opcode,
1141 IXGBE_EEPROM_OPCODE_BITS);
1142 ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2),
1143 hw->eeprom.address_bits);
1145 /* Read the data. */
1146 word_in = ixgbe_shift_in_eeprom_bits(hw, 16);
1147 data[i] = (word_in >> 8) | (word_in << 8);
1150 /* End this read operation */
1151 ixgbe_release_eeprom(hw);
1157 * ixgbe_read_eeprom_bit_bang_generic - Read EEPROM word using bit-bang
1158 * @hw: pointer to hardware structure
1159 * @offset: offset within the EEPROM to be read
1160 * @data: read 16 bit value from EEPROM
1162 * Reads 16 bit value from EEPROM through bit-bang method
1164 s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1167 hw->eeprom.ops.init_params(hw);
1169 if (offset >= hw->eeprom.word_size)
1170 return IXGBE_ERR_EEPROM;
1172 return ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
1176 * ixgbe_read_eerd_buffer_generic - Read EEPROM word(s) using EERD
1177 * @hw: pointer to hardware structure
1178 * @offset: offset of word in the EEPROM to read
1179 * @words: number of word(s)
1180 * @data: 16 bit word(s) from the EEPROM
1182 * Reads a 16 bit word(s) from the EEPROM using the EERD register.
1184 s32 ixgbe_read_eerd_buffer_generic(struct ixgbe_hw *hw, u16 offset,
1185 u16 words, u16 *data)
1191 hw->eeprom.ops.init_params(hw);
1194 return IXGBE_ERR_INVALID_ARGUMENT;
1196 if (offset >= hw->eeprom.word_size)
1197 return IXGBE_ERR_EEPROM;
1199 for (i = 0; i < words; i++) {
1200 eerd = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
1201 IXGBE_EEPROM_RW_REG_START;
1203 IXGBE_WRITE_REG(hw, IXGBE_EERD, eerd);
1204 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_READ);
1207 data[i] = (IXGBE_READ_REG(hw, IXGBE_EERD) >>
1208 IXGBE_EEPROM_RW_REG_DATA);
1210 hw_dbg(hw, "Eeprom read timed out\n");
1219 * ixgbe_detect_eeprom_page_size_generic - Detect EEPROM page size
1220 * @hw: pointer to hardware structure
1221 * @offset: offset within the EEPROM to be used as a scratch pad
1223 * Discover EEPROM page size by writing marching data at given offset.
1224 * This function is called only when we are writing a new large buffer
1225 * at given offset so the data would be overwritten anyway.
1227 static s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw,
1230 u16 data[IXGBE_EEPROM_PAGE_SIZE_MAX];
1234 for (i = 0; i < IXGBE_EEPROM_PAGE_SIZE_MAX; i++)
1237 hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX;
1238 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset,
1239 IXGBE_EEPROM_PAGE_SIZE_MAX, data);
1240 hw->eeprom.word_page_size = 0;
1244 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
1249 * When writing in burst more than the actual page size
1250 * EEPROM address wraps around current page.
1252 hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX - data[0];
1254 hw_dbg(hw, "Detected EEPROM page size = %d words.\n",
1255 hw->eeprom.word_page_size);
1260 * ixgbe_read_eerd_generic - Read EEPROM word using EERD
1261 * @hw: pointer to hardware structure
1262 * @offset: offset of word in the EEPROM to read
1263 * @data: word read from the EEPROM
1265 * Reads a 16 bit word from the EEPROM using the EERD register.
1267 s32 ixgbe_read_eerd_generic(struct ixgbe_hw *hw, u16 offset, u16 *data)
1269 return ixgbe_read_eerd_buffer_generic(hw, offset, 1, data);
1273 * ixgbe_write_eewr_buffer_generic - Write EEPROM word(s) using EEWR
1274 * @hw: pointer to hardware structure
1275 * @offset: offset of word in the EEPROM to write
1276 * @words: number of words
1277 * @data: word(s) write to the EEPROM
1279 * Write a 16 bit word(s) to the EEPROM using the EEWR register.
1281 s32 ixgbe_write_eewr_buffer_generic(struct ixgbe_hw *hw, u16 offset,
1282 u16 words, u16 *data)
1288 hw->eeprom.ops.init_params(hw);
1291 return IXGBE_ERR_INVALID_ARGUMENT;
1293 if (offset >= hw->eeprom.word_size)
1294 return IXGBE_ERR_EEPROM;
1296 for (i = 0; i < words; i++) {
1297 eewr = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
1298 (data[i] << IXGBE_EEPROM_RW_REG_DATA) |
1299 IXGBE_EEPROM_RW_REG_START;
1301 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE);
1303 hw_dbg(hw, "Eeprom write EEWR timed out\n");
1307 IXGBE_WRITE_REG(hw, IXGBE_EEWR, eewr);
1309 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE);
1311 hw_dbg(hw, "Eeprom write EEWR timed out\n");
1320 * ixgbe_write_eewr_generic - Write EEPROM word using EEWR
1321 * @hw: pointer to hardware structure
1322 * @offset: offset of word in the EEPROM to write
1323 * @data: word write to the EEPROM
1325 * Write a 16 bit word to the EEPROM using the EEWR register.
1327 s32 ixgbe_write_eewr_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
1329 return ixgbe_write_eewr_buffer_generic(hw, offset, 1, &data);
1333 * ixgbe_poll_eerd_eewr_done - Poll EERD read or EEWR write status
1334 * @hw: pointer to hardware structure
1335 * @ee_reg: EEPROM flag for polling
1337 * Polls the status bit (bit 1) of the EERD or EEWR to determine when the
1338 * read or write is done respectively.
1340 static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
1345 for (i = 0; i < IXGBE_EERD_EEWR_ATTEMPTS; i++) {
1346 if (ee_reg == IXGBE_NVM_POLL_READ)
1347 reg = IXGBE_READ_REG(hw, IXGBE_EERD);
1349 reg = IXGBE_READ_REG(hw, IXGBE_EEWR);
1351 if (reg & IXGBE_EEPROM_RW_REG_DONE) {
1356 return IXGBE_ERR_EEPROM;
1360 * ixgbe_acquire_eeprom - Acquire EEPROM using bit-bang
1361 * @hw: pointer to hardware structure
1363 * Prepares EEPROM for access using bit-bang method. This function should
1364 * be called before issuing a command to the EEPROM.
1366 static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
1371 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0)
1372 return IXGBE_ERR_SWFW_SYNC;
1374 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1376 /* Request EEPROM Access */
1377 eec |= IXGBE_EEC_REQ;
1378 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1380 for (i = 0; i < IXGBE_EEPROM_GRANT_ATTEMPTS; i++) {
1381 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1382 if (eec & IXGBE_EEC_GNT)
1387 /* Release if grant not acquired */
1388 if (!(eec & IXGBE_EEC_GNT)) {
1389 eec &= ~IXGBE_EEC_REQ;
1390 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1391 hw_dbg(hw, "Could not acquire EEPROM grant\n");
1393 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1394 return IXGBE_ERR_EEPROM;
1397 /* Setup EEPROM for Read/Write */
1398 /* Clear CS and SK */
1399 eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
1400 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1401 IXGBE_WRITE_FLUSH(hw);
1407 * ixgbe_get_eeprom_semaphore - Get hardware semaphore
1408 * @hw: pointer to hardware structure
1410 * Sets the hardware semaphores so EEPROM access can occur for bit-bang method
1412 static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
1418 /* Get SMBI software semaphore between device drivers first */
1419 for (i = 0; i < timeout; i++) {
1421 * If the SMBI bit is 0 when we read it, then the bit will be
1422 * set and we have the semaphore
1424 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw));
1425 if (!(swsm & IXGBE_SWSM_SMBI))
1427 usleep_range(50, 100);
1431 hw_dbg(hw, "Driver can't access the Eeprom - SMBI Semaphore not granted.\n");
1432 /* this release is particularly important because our attempts
1433 * above to get the semaphore may have succeeded, and if there
1434 * was a timeout, we should unconditionally clear the semaphore
1435 * bits to free the driver to make progress
1437 ixgbe_release_eeprom_semaphore(hw);
1439 usleep_range(50, 100);
1441 * If the SMBI bit is 0 when we read it, then the bit will be
1442 * set and we have the semaphore
1444 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw));
1445 if (swsm & IXGBE_SWSM_SMBI) {
1446 hw_dbg(hw, "Software semaphore SMBI between device drivers not granted.\n");
1447 return IXGBE_ERR_EEPROM;
1451 /* Now get the semaphore between SW/FW through the SWESMBI bit */
1452 for (i = 0; i < timeout; i++) {
1453 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw));
1455 /* Set the SW EEPROM semaphore bit to request access */
1456 swsm |= IXGBE_SWSM_SWESMBI;
1457 IXGBE_WRITE_REG(hw, IXGBE_SWSM(hw), swsm);
1459 /* If we set the bit successfully then we got the
1462 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw));
1463 if (swsm & IXGBE_SWSM_SWESMBI)
1466 usleep_range(50, 100);
1469 /* Release semaphores and return error if SW EEPROM semaphore
1470 * was not granted because we don't have access to the EEPROM
1473 hw_dbg(hw, "SWESMBI Software EEPROM semaphore not granted.\n");
1474 ixgbe_release_eeprom_semaphore(hw);
1475 return IXGBE_ERR_EEPROM;
1482 * ixgbe_release_eeprom_semaphore - Release hardware semaphore
1483 * @hw: pointer to hardware structure
1485 * This function clears hardware semaphore bits.
1487 static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw)
1491 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM(hw));
1493 /* Release both semaphores by writing 0 to the bits SWESMBI and SMBI */
1494 swsm &= ~(IXGBE_SWSM_SWESMBI | IXGBE_SWSM_SMBI);
1495 IXGBE_WRITE_REG(hw, IXGBE_SWSM(hw), swsm);
1496 IXGBE_WRITE_FLUSH(hw);
1500 * ixgbe_ready_eeprom - Polls for EEPROM ready
1501 * @hw: pointer to hardware structure
1503 static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw)
1509 * Read "Status Register" repeatedly until the LSB is cleared. The
1510 * EEPROM will signal that the command has been completed by clearing
1511 * bit 0 of the internal status register. If it's not cleared within
1512 * 5 milliseconds, then error out.
1514 for (i = 0; i < IXGBE_EEPROM_MAX_RETRY_SPI; i += 5) {
1515 ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_RDSR_OPCODE_SPI,
1516 IXGBE_EEPROM_OPCODE_BITS);
1517 spi_stat_reg = (u8)ixgbe_shift_in_eeprom_bits(hw, 8);
1518 if (!(spi_stat_reg & IXGBE_EEPROM_STATUS_RDY_SPI))
1522 ixgbe_standby_eeprom(hw);
1526 * On some parts, SPI write time could vary from 0-20mSec on 3.3V
1527 * devices (and only 0-5mSec on 5V devices)
1529 if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) {
1530 hw_dbg(hw, "SPI EEPROM Status error\n");
1531 return IXGBE_ERR_EEPROM;
1538 * ixgbe_standby_eeprom - Returns EEPROM to a "standby" state
1539 * @hw: pointer to hardware structure
1541 static void ixgbe_standby_eeprom(struct ixgbe_hw *hw)
1545 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1547 /* Toggle CS to flush commands */
1548 eec |= IXGBE_EEC_CS;
1549 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1550 IXGBE_WRITE_FLUSH(hw);
1552 eec &= ~IXGBE_EEC_CS;
1553 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1554 IXGBE_WRITE_FLUSH(hw);
1559 * ixgbe_shift_out_eeprom_bits - Shift data bits out to the EEPROM.
1560 * @hw: pointer to hardware structure
1561 * @data: data to send to the EEPROM
1562 * @count: number of bits to shift out
1564 static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
1571 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1574 * Mask is used to shift "count" bits of "data" out to the EEPROM
1575 * one bit at a time. Determine the starting bit based on count
1577 mask = BIT(count - 1);
1579 for (i = 0; i < count; i++) {
1581 * A "1" is shifted out to the EEPROM by setting bit "DI" to a
1582 * "1", and then raising and then lowering the clock (the SK
1583 * bit controls the clock input to the EEPROM). A "0" is
1584 * shifted out to the EEPROM by setting "DI" to "0" and then
1585 * raising and then lowering the clock.
1588 eec |= IXGBE_EEC_DI;
1590 eec &= ~IXGBE_EEC_DI;
1592 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1593 IXGBE_WRITE_FLUSH(hw);
1597 ixgbe_raise_eeprom_clk(hw, &eec);
1598 ixgbe_lower_eeprom_clk(hw, &eec);
1601 * Shift mask to signify next bit of data to shift in to the
1607 /* We leave the "DI" bit set to "0" when we leave this routine. */
1608 eec &= ~IXGBE_EEC_DI;
1609 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1610 IXGBE_WRITE_FLUSH(hw);
1614 * ixgbe_shift_in_eeprom_bits - Shift data bits in from the EEPROM
1615 * @hw: pointer to hardware structure
1617 static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count)
1624 * In order to read a register from the EEPROM, we need to shift
1625 * 'count' bits in from the EEPROM. Bits are "shifted in" by raising
1626 * the clock input to the EEPROM (setting the SK bit), and then reading
1627 * the value of the "DO" bit. During this "shifting in" process the
1628 * "DI" bit should always be clear.
1630 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1632 eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI);
1634 for (i = 0; i < count; i++) {
1636 ixgbe_raise_eeprom_clk(hw, &eec);
1638 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1640 eec &= ~(IXGBE_EEC_DI);
1641 if (eec & IXGBE_EEC_DO)
1644 ixgbe_lower_eeprom_clk(hw, &eec);
1651 * ixgbe_raise_eeprom_clk - Raises the EEPROM's clock input.
1652 * @hw: pointer to hardware structure
1653 * @eec: EEC register's current value
1655 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
1658 * Raise the clock input to the EEPROM
1659 * (setting the SK bit), then delay
1661 *eec = *eec | IXGBE_EEC_SK;
1662 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), *eec);
1663 IXGBE_WRITE_FLUSH(hw);
1668 * ixgbe_lower_eeprom_clk - Lowers the EEPROM's clock input.
1669 * @hw: pointer to hardware structure
1670 * @eecd: EECD's current value
1672 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
1675 * Lower the clock input to the EEPROM (clearing the SK bit), then
1678 *eec = *eec & ~IXGBE_EEC_SK;
1679 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), *eec);
1680 IXGBE_WRITE_FLUSH(hw);
1685 * ixgbe_release_eeprom - Release EEPROM, release semaphores
1686 * @hw: pointer to hardware structure
1688 static void ixgbe_release_eeprom(struct ixgbe_hw *hw)
1692 eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1694 eec |= IXGBE_EEC_CS; /* Pull CS high */
1695 eec &= ~IXGBE_EEC_SK; /* Lower SCK */
1697 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1698 IXGBE_WRITE_FLUSH(hw);
1702 /* Stop requesting EEPROM access */
1703 eec &= ~IXGBE_EEC_REQ;
1704 IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1706 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1709 * Delay before attempt to obtain semaphore again to allow FW
1710 * access. semaphore_delay is in ms we need us for usleep_range
1712 usleep_range(hw->eeprom.semaphore_delay * 1000,
1713 hw->eeprom.semaphore_delay * 2000);
1717 * ixgbe_calc_eeprom_checksum_generic - Calculates and returns the checksum
1718 * @hw: pointer to hardware structure
1720 s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
1729 /* Include 0x0-0x3F in the checksum */
1730 for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) {
1731 if (hw->eeprom.ops.read(hw, i, &word)) {
1732 hw_dbg(hw, "EEPROM read failed\n");
1738 /* Include all data from pointers except for the fw pointer */
1739 for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
1740 if (hw->eeprom.ops.read(hw, i, &pointer)) {
1741 hw_dbg(hw, "EEPROM read failed\n");
1742 return IXGBE_ERR_EEPROM;
1745 /* If the pointer seems invalid */
1746 if (pointer == 0xFFFF || pointer == 0)
1749 if (hw->eeprom.ops.read(hw, pointer, &length)) {
1750 hw_dbg(hw, "EEPROM read failed\n");
1751 return IXGBE_ERR_EEPROM;
1754 if (length == 0xFFFF || length == 0)
1757 for (j = pointer + 1; j <= pointer + length; j++) {
1758 if (hw->eeprom.ops.read(hw, j, &word)) {
1759 hw_dbg(hw, "EEPROM read failed\n");
1760 return IXGBE_ERR_EEPROM;
1766 checksum = (u16)IXGBE_EEPROM_SUM - checksum;
1768 return (s32)checksum;
1772 * ixgbe_validate_eeprom_checksum_generic - Validate EEPROM checksum
1773 * @hw: pointer to hardware structure
1774 * @checksum_val: calculated checksum
1776 * Performs checksum calculation and validates the EEPROM checksum. If the
1777 * caller does not need checksum_val, the value can be NULL.
1779 s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
1784 u16 read_checksum = 0;
1787 * Read the first word from the EEPROM. If this times out or fails, do
1788 * not continue or we could be in for a very long wait while every
1791 status = hw->eeprom.ops.read(hw, 0, &checksum);
1793 hw_dbg(hw, "EEPROM read failed\n");
1797 status = hw->eeprom.ops.calc_checksum(hw);
1801 checksum = (u16)(status & 0xffff);
1803 status = hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum);
1805 hw_dbg(hw, "EEPROM read failed\n");
1809 /* Verify read checksum from EEPROM is the same as
1810 * calculated checksum
1812 if (read_checksum != checksum)
1813 status = IXGBE_ERR_EEPROM_CHECKSUM;
1815 /* If the user cares, return the calculated checksum */
1817 *checksum_val = checksum;
1823 * ixgbe_update_eeprom_checksum_generic - Updates the EEPROM checksum
1824 * @hw: pointer to hardware structure
1826 s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw)
1832 * Read the first word from the EEPROM. If this times out or fails, do
1833 * not continue or we could be in for a very long wait while every
1836 status = hw->eeprom.ops.read(hw, 0, &checksum);
1838 hw_dbg(hw, "EEPROM read failed\n");
1842 status = hw->eeprom.ops.calc_checksum(hw);
1846 checksum = (u16)(status & 0xffff);
1848 status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM, checksum);
1854 * ixgbe_set_rar_generic - Set Rx address register
1855 * @hw: pointer to hardware structure
1856 * @index: Receive address register to write
1857 * @addr: Address to put into receive address register
1858 * @vmdq: VMDq "set" or "pool" index
1859 * @enable_addr: set flag that address is active
1861 * Puts an ethernet address into a receive address register.
1863 s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
1866 u32 rar_low, rar_high;
1867 u32 rar_entries = hw->mac.num_rar_entries;
1869 /* Make sure we are using a valid rar index range */
1870 if (index >= rar_entries) {
1871 hw_dbg(hw, "RAR index %d is out of range.\n", index);
1872 return IXGBE_ERR_INVALID_ARGUMENT;
1875 /* setup VMDq pool selection before this RAR gets enabled */
1876 hw->mac.ops.set_vmdq(hw, index, vmdq);
1879 * HW expects these in little endian so we reverse the byte
1880 * order from network order (big endian) to little endian
1882 rar_low = ((u32)addr[0] |
1883 ((u32)addr[1] << 8) |
1884 ((u32)addr[2] << 16) |
1885 ((u32)addr[3] << 24));
1887 * Some parts put the VMDq setting in the extra RAH bits,
1888 * so save everything except the lower 16 bits that hold part
1889 * of the address and the address valid bit.
1891 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
1892 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
1893 rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8));
1895 if (enable_addr != 0)
1896 rar_high |= IXGBE_RAH_AV;
1898 /* Record lower 32 bits of MAC address and then make
1899 * sure that write is flushed to hardware before writing
1900 * the upper 16 bits and setting the valid bit.
1902 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low);
1903 IXGBE_WRITE_FLUSH(hw);
1904 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
1910 * ixgbe_clear_rar_generic - Remove Rx address register
1911 * @hw: pointer to hardware structure
1912 * @index: Receive address register to write
1914 * Clears an ethernet address from a receive address register.
1916 s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
1919 u32 rar_entries = hw->mac.num_rar_entries;
1921 /* Make sure we are using a valid rar index range */
1922 if (index >= rar_entries) {
1923 hw_dbg(hw, "RAR index %d is out of range.\n", index);
1924 return IXGBE_ERR_INVALID_ARGUMENT;
1928 * Some parts put the VMDq setting in the extra RAH bits,
1929 * so save everything except the lower 16 bits that hold part
1930 * of the address and the address valid bit.
1932 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
1933 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
1935 /* Clear the address valid bit and upper 16 bits of the address
1936 * before clearing the lower bits. This way we aren't updating
1939 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
1940 IXGBE_WRITE_FLUSH(hw);
1941 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0);
1943 /* clear VMDq pool/queue selection for this RAR */
1944 hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL);
1950 * ixgbe_init_rx_addrs_generic - Initializes receive address filters.
1951 * @hw: pointer to hardware structure
1953 * Places the MAC address in receive address register 0 and clears the rest
1954 * of the receive address registers. Clears the multicast table. Assumes
1955 * the receiver is in reset when the routine is called.
1957 s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw)
1960 u32 rar_entries = hw->mac.num_rar_entries;
1963 * If the current mac address is valid, assume it is a software override
1964 * to the permanent address.
1965 * Otherwise, use the permanent address from the eeprom.
1967 if (!is_valid_ether_addr(hw->mac.addr)) {
1968 /* Get the MAC address from the RAR0 for later reference */
1969 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
1971 hw_dbg(hw, " Keeping Current RAR0 Addr =%pM\n", hw->mac.addr);
1973 /* Setup the receive address. */
1974 hw_dbg(hw, "Overriding MAC Address in RAR[0]\n");
1975 hw_dbg(hw, " New MAC Addr =%pM\n", hw->mac.addr);
1977 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
1980 /* clear VMDq pool/queue selection for RAR 0 */
1981 hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL);
1983 hw->addr_ctrl.overflow_promisc = 0;
1985 hw->addr_ctrl.rar_used_count = 1;
1987 /* Zero out the other receive addresses. */
1988 hw_dbg(hw, "Clearing RAR[1-%d]\n", rar_entries - 1);
1989 for (i = 1; i < rar_entries; i++) {
1990 IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
1991 IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
1995 hw->addr_ctrl.mta_in_use = 0;
1996 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
1998 hw_dbg(hw, " Clearing MTA\n");
1999 for (i = 0; i < hw->mac.mcft_size; i++)
2000 IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0);
2002 if (hw->mac.ops.init_uta_tables)
2003 hw->mac.ops.init_uta_tables(hw);
2009 * ixgbe_mta_vector - Determines bit-vector in multicast table to set
2010 * @hw: pointer to hardware structure
2011 * @mc_addr: the multicast address
2013 * Extracts the 12 bits, from a multicast address, to determine which
2014 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
2015 * incoming rx multicast addresses, to determine the bit-vector to check in
2016 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
2017 * by the MO field of the MCSTCTRL. The MO field is set during initialization
2018 * to mc_filter_type.
2020 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
2024 switch (hw->mac.mc_filter_type) {
2025 case 0: /* use bits [47:36] of the address */
2026 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
2028 case 1: /* use bits [46:35] of the address */
2029 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
2031 case 2: /* use bits [45:34] of the address */
2032 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
2034 case 3: /* use bits [43:32] of the address */
2035 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
2037 default: /* Invalid mc_filter_type */
2038 hw_dbg(hw, "MC filter type param set incorrectly\n");
2042 /* vector can only be 12-bits or boundary will be exceeded */
2048 * ixgbe_set_mta - Set bit-vector in multicast table
2049 * @hw: pointer to hardware structure
2050 * @hash_value: Multicast address hash value
2052 * Sets the bit-vector in the multicast table.
2054 static void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
2060 hw->addr_ctrl.mta_in_use++;
2062 vector = ixgbe_mta_vector(hw, mc_addr);
2063 hw_dbg(hw, " bit-vector = 0x%03X\n", vector);
2066 * The MTA is a register array of 128 32-bit registers. It is treated
2067 * like an array of 4096 bits. We want to set bit
2068 * BitArray[vector_value]. So we figure out what register the bit is
2069 * in, read it, OR in the new bit, then write back the new value. The
2070 * register is determined by the upper 7 bits of the vector value and
2071 * the bit within that register are determined by the lower 5 bits of
2074 vector_reg = (vector >> 5) & 0x7F;
2075 vector_bit = vector & 0x1F;
2076 hw->mac.mta_shadow[vector_reg] |= BIT(vector_bit);
2080 * ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses
2081 * @hw: pointer to hardware structure
2082 * @netdev: pointer to net device structure
2084 * The given list replaces any existing list. Clears the MC addrs from receive
2085 * address registers and the multicast table. Uses unused receive address
2086 * registers for the first multicast addresses, and hashes the rest into the
2089 s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw,
2090 struct net_device *netdev)
2092 struct netdev_hw_addr *ha;
2096 * Set the new number of MC addresses that we are being requested to
2099 hw->addr_ctrl.num_mc_addrs = netdev_mc_count(netdev);
2100 hw->addr_ctrl.mta_in_use = 0;
2102 /* Clear mta_shadow */
2103 hw_dbg(hw, " Clearing MTA\n");
2104 memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
2106 /* Update mta shadow */
2107 netdev_for_each_mc_addr(ha, netdev) {
2108 hw_dbg(hw, " Adding the multicast addresses:\n");
2109 ixgbe_set_mta(hw, ha->addr);
2113 for (i = 0; i < hw->mac.mcft_size; i++)
2114 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_MTA(0), i,
2115 hw->mac.mta_shadow[i]);
2117 if (hw->addr_ctrl.mta_in_use > 0)
2118 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL,
2119 IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type);
2121 hw_dbg(hw, "ixgbe_update_mc_addr_list_generic Complete\n");
2126 * ixgbe_enable_mc_generic - Enable multicast address in RAR
2127 * @hw: pointer to hardware structure
2129 * Enables multicast address in RAR and the use of the multicast hash table.
2131 s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw)
2133 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
2135 if (a->mta_in_use > 0)
2136 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE |
2137 hw->mac.mc_filter_type);
2143 * ixgbe_disable_mc_generic - Disable multicast address in RAR
2144 * @hw: pointer to hardware structure
2146 * Disables multicast address in RAR and the use of the multicast hash table.
2148 s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw)
2150 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
2152 if (a->mta_in_use > 0)
2153 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
2159 * ixgbe_fc_enable_generic - Enable flow control
2160 * @hw: pointer to hardware structure
2162 * Enable flow control according to the current settings.
2164 s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
2166 u32 mflcn_reg, fccfg_reg;
2171 /* Validate the water mark configuration. */
2172 if (!hw->fc.pause_time)
2173 return IXGBE_ERR_INVALID_LINK_SETTINGS;
2175 /* Low water mark of zero causes XOFF floods */
2176 for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
2177 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
2178 hw->fc.high_water[i]) {
2179 if (!hw->fc.low_water[i] ||
2180 hw->fc.low_water[i] >= hw->fc.high_water[i]) {
2181 hw_dbg(hw, "Invalid water mark configuration\n");
2182 return IXGBE_ERR_INVALID_LINK_SETTINGS;
2187 /* Negotiate the fc mode to use */
2188 hw->mac.ops.fc_autoneg(hw);
2190 /* Disable any previous flow control settings */
2191 mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
2192 mflcn_reg &= ~(IXGBE_MFLCN_RPFCE_MASK | IXGBE_MFLCN_RFCE);
2194 fccfg_reg = IXGBE_READ_REG(hw, IXGBE_FCCFG);
2195 fccfg_reg &= ~(IXGBE_FCCFG_TFCE_802_3X | IXGBE_FCCFG_TFCE_PRIORITY);
2198 * The possible values of fc.current_mode are:
2199 * 0: Flow control is completely disabled
2200 * 1: Rx flow control is enabled (we can receive pause frames,
2201 * but not send pause frames).
2202 * 2: Tx flow control is enabled (we can send pause frames but
2203 * we do not support receiving pause frames).
2204 * 3: Both Rx and Tx flow control (symmetric) are enabled.
2207 switch (hw->fc.current_mode) {
2210 * Flow control is disabled by software override or autoneg.
2211 * The code below will actually disable it in the HW.
2214 case ixgbe_fc_rx_pause:
2216 * Rx Flow control is enabled and Tx Flow control is
2217 * disabled by software override. Since there really
2218 * isn't a way to advertise that we are capable of RX
2219 * Pause ONLY, we will advertise that we support both
2220 * symmetric and asymmetric Rx PAUSE. Later, we will
2221 * disable the adapter's ability to send PAUSE frames.
2223 mflcn_reg |= IXGBE_MFLCN_RFCE;
2225 case ixgbe_fc_tx_pause:
2227 * Tx Flow control is enabled, and Rx Flow control is
2228 * disabled by software override.
2230 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
2233 /* Flow control (both Rx and Tx) is enabled by SW override. */
2234 mflcn_reg |= IXGBE_MFLCN_RFCE;
2235 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
2238 hw_dbg(hw, "Flow control param set incorrectly\n");
2239 return IXGBE_ERR_CONFIG;
2242 /* Set 802.3x based flow control settings. */
2243 mflcn_reg |= IXGBE_MFLCN_DPF;
2244 IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg);
2245 IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg);
2247 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
2248 for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
2249 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
2250 hw->fc.high_water[i]) {
2251 fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
2252 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), fcrtl);
2253 fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
2255 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0);
2257 * In order to prevent Tx hangs when the internal Tx
2258 * switch is enabled we must set the high water mark
2259 * to the Rx packet buffer size - 24KB. This allows
2260 * the Tx switch to function even under heavy Rx
2263 fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 24576;
2266 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth);
2269 /* Configure pause time (2 TCs per register) */
2270 reg = hw->fc.pause_time * 0x00010001U;
2271 for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
2272 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
2274 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
2280 * ixgbe_negotiate_fc - Negotiate flow control
2281 * @hw: pointer to hardware structure
2282 * @adv_reg: flow control advertised settings
2283 * @lp_reg: link partner's flow control settings
2284 * @adv_sym: symmetric pause bit in advertisement
2285 * @adv_asm: asymmetric pause bit in advertisement
2286 * @lp_sym: symmetric pause bit in link partner advertisement
2287 * @lp_asm: asymmetric pause bit in link partner advertisement
2289 * Find the intersection between advertised settings and link partner's
2290 * advertised settings
2292 s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
2293 u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
2295 if ((!(adv_reg)) || (!(lp_reg)))
2296 return IXGBE_ERR_FC_NOT_NEGOTIATED;
2298 if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) {
2300 * Now we need to check if the user selected Rx ONLY
2301 * of pause frames. In this case, we had to advertise
2302 * FULL flow control because we could not advertise RX
2303 * ONLY. Hence, we must now check to see if we need to
2304 * turn OFF the TRANSMISSION of PAUSE frames.
2306 if (hw->fc.requested_mode == ixgbe_fc_full) {
2307 hw->fc.current_mode = ixgbe_fc_full;
2308 hw_dbg(hw, "Flow Control = FULL.\n");
2310 hw->fc.current_mode = ixgbe_fc_rx_pause;
2311 hw_dbg(hw, "Flow Control=RX PAUSE frames only\n");
2313 } else if (!(adv_reg & adv_sym) && (adv_reg & adv_asm) &&
2314 (lp_reg & lp_sym) && (lp_reg & lp_asm)) {
2315 hw->fc.current_mode = ixgbe_fc_tx_pause;
2316 hw_dbg(hw, "Flow Control = TX PAUSE frames only.\n");
2317 } else if ((adv_reg & adv_sym) && (adv_reg & adv_asm) &&
2318 !(lp_reg & lp_sym) && (lp_reg & lp_asm)) {
2319 hw->fc.current_mode = ixgbe_fc_rx_pause;
2320 hw_dbg(hw, "Flow Control = RX PAUSE frames only.\n");
2322 hw->fc.current_mode = ixgbe_fc_none;
2323 hw_dbg(hw, "Flow Control = NONE.\n");
2329 * ixgbe_fc_autoneg_fiber - Enable flow control on 1 gig fiber
2330 * @hw: pointer to hardware structure
2332 * Enable flow control according on 1 gig fiber.
2334 static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw)
2336 u32 pcs_anadv_reg, pcs_lpab_reg, linkstat;
2340 * On multispeed fiber at 1g, bail out if
2341 * - link is up but AN did not complete, or if
2342 * - link is up and AN completed but timed out
2345 linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
2346 if ((!!(linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
2347 (!!(linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1))
2348 return IXGBE_ERR_FC_NOT_NEGOTIATED;
2350 pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
2351 pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
2353 ret_val = ixgbe_negotiate_fc(hw, pcs_anadv_reg,
2354 pcs_lpab_reg, IXGBE_PCS1GANA_SYM_PAUSE,
2355 IXGBE_PCS1GANA_ASM_PAUSE,
2356 IXGBE_PCS1GANA_SYM_PAUSE,
2357 IXGBE_PCS1GANA_ASM_PAUSE);
2363 * ixgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37
2364 * @hw: pointer to hardware structure
2366 * Enable flow control according to IEEE clause 37.
2368 static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw)
2370 u32 links2, anlp1_reg, autoc_reg, links;
2374 * On backplane, bail out if
2375 * - backplane autoneg was not completed, or if
2376 * - we are 82599 and link partner is not AN enabled
2378 links = IXGBE_READ_REG(hw, IXGBE_LINKS);
2379 if ((links & IXGBE_LINKS_KX_AN_COMP) == 0)
2380 return IXGBE_ERR_FC_NOT_NEGOTIATED;
2382 if (hw->mac.type == ixgbe_mac_82599EB) {
2383 links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
2384 if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0)
2385 return IXGBE_ERR_FC_NOT_NEGOTIATED;
2388 * Read the 10g AN autoc and LP ability registers and resolve
2389 * local flow control settings accordingly
2391 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2392 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2394 ret_val = ixgbe_negotiate_fc(hw, autoc_reg,
2395 anlp1_reg, IXGBE_AUTOC_SYM_PAUSE, IXGBE_AUTOC_ASM_PAUSE,
2396 IXGBE_ANLP1_SYM_PAUSE, IXGBE_ANLP1_ASM_PAUSE);
2402 * ixgbe_fc_autoneg_copper - Enable flow control IEEE clause 37
2403 * @hw: pointer to hardware structure
2405 * Enable flow control according to IEEE clause 37.
2407 static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw)
2409 u16 technology_ability_reg = 0;
2410 u16 lp_technology_ability_reg = 0;
2412 hw->phy.ops.read_reg(hw, MDIO_AN_ADVERTISE,
2414 &technology_ability_reg);
2415 hw->phy.ops.read_reg(hw, MDIO_AN_LPA,
2417 &lp_technology_ability_reg);
2419 return ixgbe_negotiate_fc(hw, (u32)technology_ability_reg,
2420 (u32)lp_technology_ability_reg,
2421 IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE,
2422 IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE);
2426 * ixgbe_fc_autoneg - Configure flow control
2427 * @hw: pointer to hardware structure
2429 * Compares our advertised flow control capabilities to those advertised by
2430 * our link partner, and determines the proper flow control mode to use.
2432 void ixgbe_fc_autoneg(struct ixgbe_hw *hw)
2434 s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
2435 ixgbe_link_speed speed;
2439 * AN should have completed when the cable was plugged in.
2440 * Look for reasons to bail out. Bail out if:
2441 * - FC autoneg is disabled, or if
2444 * Since we're being called from an LSC, link is already known to be up.
2445 * So use link_up_wait_to_complete=false.
2447 if (hw->fc.disable_fc_autoneg)
2450 hw->mac.ops.check_link(hw, &speed, &link_up, false);
2454 switch (hw->phy.media_type) {
2455 /* Autoneg flow control on fiber adapters */
2456 case ixgbe_media_type_fiber:
2457 if (speed == IXGBE_LINK_SPEED_1GB_FULL)
2458 ret_val = ixgbe_fc_autoneg_fiber(hw);
2461 /* Autoneg flow control on backplane adapters */
2462 case ixgbe_media_type_backplane:
2463 ret_val = ixgbe_fc_autoneg_backplane(hw);
2466 /* Autoneg flow control on copper adapters */
2467 case ixgbe_media_type_copper:
2468 if (ixgbe_device_supports_autoneg_fc(hw))
2469 ret_val = ixgbe_fc_autoneg_copper(hw);
2478 hw->fc.fc_was_autonegged = true;
2480 hw->fc.fc_was_autonegged = false;
2481 hw->fc.current_mode = hw->fc.requested_mode;
2486 * ixgbe_pcie_timeout_poll - Return number of times to poll for completion
2487 * @hw: pointer to hardware structure
2489 * System-wide timeout range is encoded in PCIe Device Control2 register.
2491 * Add 10% to specified maximum and return the number of times to poll for
2492 * completion timeout, in units of 100 microsec. Never return less than
2493 * 800 = 80 millisec.
2495 static u32 ixgbe_pcie_timeout_poll(struct ixgbe_hw *hw)
2500 devctl2 = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2);
2501 devctl2 &= IXGBE_PCIDEVCTRL2_TIMEO_MASK;
2504 case IXGBE_PCIDEVCTRL2_65_130ms:
2505 pollcnt = 1300; /* 130 millisec */
2507 case IXGBE_PCIDEVCTRL2_260_520ms:
2508 pollcnt = 5200; /* 520 millisec */
2510 case IXGBE_PCIDEVCTRL2_1_2s:
2511 pollcnt = 20000; /* 2 sec */
2513 case IXGBE_PCIDEVCTRL2_4_8s:
2514 pollcnt = 80000; /* 8 sec */
2516 case IXGBE_PCIDEVCTRL2_17_34s:
2517 pollcnt = 34000; /* 34 sec */
2519 case IXGBE_PCIDEVCTRL2_50_100us: /* 100 microsecs */
2520 case IXGBE_PCIDEVCTRL2_1_2ms: /* 2 millisecs */
2521 case IXGBE_PCIDEVCTRL2_16_32ms: /* 32 millisec */
2522 case IXGBE_PCIDEVCTRL2_16_32ms_def: /* 32 millisec default */
2524 pollcnt = 800; /* 80 millisec minimum */
2528 /* add 10% to spec maximum */
2529 return (pollcnt * 11) / 10;
2533 * ixgbe_disable_pcie_master - Disable PCI-express master access
2534 * @hw: pointer to hardware structure
2536 * Disables PCI-Express master access and verifies there are no pending
2537 * requests. IXGBE_ERR_MASTER_REQUESTS_PENDING is returned if master disable
2538 * bit hasn't caused the master requests to be disabled, else 0
2539 * is returned signifying master requests disabled.
2541 static s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
2546 /* Always set this bit to ensure any future transactions are blocked */
2547 IXGBE_WRITE_REG(hw, IXGBE_CTRL, IXGBE_CTRL_GIO_DIS);
2549 /* Poll for bit to read as set */
2550 for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) {
2551 if (IXGBE_READ_REG(hw, IXGBE_CTRL) & IXGBE_CTRL_GIO_DIS)
2553 usleep_range(100, 120);
2555 if (i >= IXGBE_PCI_MASTER_DISABLE_TIMEOUT) {
2556 hw_dbg(hw, "GIO disable did not set - requesting resets\n");
2557 goto gio_disable_fail;
2560 /* Exit if master requests are blocked */
2561 if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO) ||
2562 ixgbe_removed(hw->hw_addr))
2565 /* Poll for master request bit to clear */
2566 for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) {
2568 if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO))
2573 * Two consecutive resets are required via CTRL.RST per datasheet
2574 * 5.2.5.3.2 Master Disable. We set a flag to inform the reset routine
2575 * of this need. The first reset prevents new master requests from
2576 * being issued by our device. We then must wait 1usec or more for any
2577 * remaining completions from the PCIe bus to trickle in, and then reset
2578 * again to clear out any effects they may have had on our device.
2580 hw_dbg(hw, "GIO Master Disable bit didn't clear - requesting resets\n");
2582 hw->mac.flags |= IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
2584 if (hw->mac.type >= ixgbe_mac_X550)
2588 * Before proceeding, make sure that the PCIe block does not have
2589 * transactions pending.
2591 poll = ixgbe_pcie_timeout_poll(hw);
2592 for (i = 0; i < poll; i++) {
2594 value = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_STATUS);
2595 if (ixgbe_removed(hw->hw_addr))
2597 if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING))
2601 hw_dbg(hw, "PCIe transaction pending bit also did not clear.\n");
2602 return IXGBE_ERR_MASTER_REQUESTS_PENDING;
2606 * ixgbe_acquire_swfw_sync - Acquire SWFW semaphore
2607 * @hw: pointer to hardware structure
2608 * @mask: Mask to specify which semaphore to acquire
2610 * Acquires the SWFW semaphore through the GSSR register for the specified
2611 * function (CSR, PHY0, PHY1, EEPROM, Flash)
2613 s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
2617 u32 fwmask = mask << 5;
2621 for (i = 0; i < timeout; i++) {
2623 * SW NVM semaphore bit is used for access to all
2624 * SW_FW_SYNC bits (not just NVM)
2626 if (ixgbe_get_eeprom_semaphore(hw))
2627 return IXGBE_ERR_SWFW_SYNC;
2629 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
2630 if (!(gssr & (fwmask | swmask))) {
2632 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
2633 ixgbe_release_eeprom_semaphore(hw);
2636 /* Resource is currently in use by FW or SW */
2637 ixgbe_release_eeprom_semaphore(hw);
2638 usleep_range(5000, 10000);
2642 /* If time expired clear the bits holding the lock and retry */
2643 if (gssr & (fwmask | swmask))
2644 ixgbe_release_swfw_sync(hw, gssr & (fwmask | swmask));
2646 usleep_range(5000, 10000);
2647 return IXGBE_ERR_SWFW_SYNC;
2651 * ixgbe_release_swfw_sync - Release SWFW semaphore
2652 * @hw: pointer to hardware structure
2653 * @mask: Mask to specify which semaphore to release
2655 * Releases the SWFW semaphore through the GSSR register for the specified
2656 * function (CSR, PHY0, PHY1, EEPROM, Flash)
2658 void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u32 mask)
2663 ixgbe_get_eeprom_semaphore(hw);
2665 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
2667 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
2669 ixgbe_release_eeprom_semaphore(hw);
2673 * prot_autoc_read_generic - Hides MAC differences needed for AUTOC read
2674 * @hw: pointer to hardware structure
2675 * @reg_val: Value we read from AUTOC
2676 * @locked: bool to indicate whether the SW/FW lock should be taken. Never
2677 * true in this the generic case.
2679 * The default case requires no protection so just to the register read.
2681 s32 prot_autoc_read_generic(struct ixgbe_hw *hw, bool *locked, u32 *reg_val)
2684 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2689 * prot_autoc_write_generic - Hides MAC differences needed for AUTOC write
2690 * @hw: pointer to hardware structure
2691 * @reg_val: value to write to AUTOC
2692 * @locked: bool to indicate whether the SW/FW lock was already taken by
2695 s32 prot_autoc_write_generic(struct ixgbe_hw *hw, u32 reg_val, bool locked)
2697 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_val);
2702 * ixgbe_disable_rx_buff_generic - Stops the receive data path
2703 * @hw: pointer to hardware structure
2705 * Stops the receive data path and waits for the HW to internally
2706 * empty the Rx security block.
2708 s32 ixgbe_disable_rx_buff_generic(struct ixgbe_hw *hw)
2710 #define IXGBE_MAX_SECRX_POLL 40
2714 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
2715 secrxreg |= IXGBE_SECRXCTRL_RX_DIS;
2716 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
2717 for (i = 0; i < IXGBE_MAX_SECRX_POLL; i++) {
2718 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
2719 if (secrxreg & IXGBE_SECRXSTAT_SECRX_RDY)
2722 /* Use interrupt-safe sleep just in case */
2726 /* For informational purposes only */
2727 if (i >= IXGBE_MAX_SECRX_POLL)
2728 hw_dbg(hw, "Rx unit being enabled before security path fully disabled. Continuing with init.\n");
2735 * ixgbe_enable_rx_buff - Enables the receive data path
2736 * @hw: pointer to hardware structure
2738 * Enables the receive data path
2740 s32 ixgbe_enable_rx_buff_generic(struct ixgbe_hw *hw)
2744 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
2745 secrxreg &= ~IXGBE_SECRXCTRL_RX_DIS;
2746 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
2747 IXGBE_WRITE_FLUSH(hw);
2753 * ixgbe_enable_rx_dma_generic - Enable the Rx DMA unit
2754 * @hw: pointer to hardware structure
2755 * @regval: register value to write to RXCTRL
2757 * Enables the Rx DMA unit
2759 s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval)
2761 if (regval & IXGBE_RXCTRL_RXEN)
2762 hw->mac.ops.enable_rx(hw);
2764 hw->mac.ops.disable_rx(hw);
2770 * ixgbe_blink_led_start_generic - Blink LED based on index.
2771 * @hw: pointer to hardware structure
2772 * @index: led number to blink
2774 s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
2776 ixgbe_link_speed speed = 0;
2777 bool link_up = false;
2778 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2779 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
2780 bool locked = false;
2784 return IXGBE_ERR_PARAM;
2787 * Link must be up to auto-blink the LEDs;
2788 * Force it if link is down.
2790 hw->mac.ops.check_link(hw, &speed, &link_up, false);
2793 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
2797 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2798 autoc_reg |= IXGBE_AUTOC_FLU;
2800 ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked);
2804 IXGBE_WRITE_FLUSH(hw);
2806 usleep_range(10000, 20000);
2809 led_reg &= ~IXGBE_LED_MODE_MASK(index);
2810 led_reg |= IXGBE_LED_BLINK(index);
2811 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
2812 IXGBE_WRITE_FLUSH(hw);
2818 * ixgbe_blink_led_stop_generic - Stop blinking LED based on index.
2819 * @hw: pointer to hardware structure
2820 * @index: led number to stop blinking
2822 s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
2825 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
2826 bool locked = false;
2830 return IXGBE_ERR_PARAM;
2832 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
2836 autoc_reg &= ~IXGBE_AUTOC_FLU;
2837 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2839 ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked);
2843 led_reg &= ~IXGBE_LED_MODE_MASK(index);
2844 led_reg &= ~IXGBE_LED_BLINK(index);
2845 led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
2846 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
2847 IXGBE_WRITE_FLUSH(hw);
2853 * ixgbe_get_san_mac_addr_offset - Get SAN MAC address offset from the EEPROM
2854 * @hw: pointer to hardware structure
2855 * @san_mac_offset: SAN MAC address offset
2857 * This function will read the EEPROM location for the SAN MAC address
2858 * pointer, and returns the value at that location. This is used in both
2859 * get and set mac_addr routines.
2861 static s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw,
2862 u16 *san_mac_offset)
2867 * First read the EEPROM pointer to see if the MAC addresses are
2870 ret_val = hw->eeprom.ops.read(hw, IXGBE_SAN_MAC_ADDR_PTR,
2873 hw_err(hw, "eeprom read at offset %d failed\n",
2874 IXGBE_SAN_MAC_ADDR_PTR);
2880 * ixgbe_get_san_mac_addr_generic - SAN MAC address retrieval from the EEPROM
2881 * @hw: pointer to hardware structure
2882 * @san_mac_addr: SAN MAC address
2884 * Reads the SAN MAC address from the EEPROM, if it's available. This is
2885 * per-port, so set_lan_id() must be called before reading the addresses.
2886 * set_lan_id() is called by identify_sfp(), but this cannot be relied
2887 * upon for non-SFP connections, so we must call it here.
2889 s32 ixgbe_get_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr)
2891 u16 san_mac_data, san_mac_offset;
2896 * First read the EEPROM pointer to see if the MAC addresses are
2897 * available. If they're not, no point in calling set_lan_id() here.
2899 ret_val = ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset);
2900 if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF)
2902 goto san_mac_addr_clr;
2904 /* make sure we know which port we need to program */
2905 hw->mac.ops.set_lan_id(hw);
2906 /* apply the port offset to the address offset */
2907 (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) :
2908 (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET);
2909 for (i = 0; i < 3; i++) {
2910 ret_val = hw->eeprom.ops.read(hw, san_mac_offset,
2913 hw_err(hw, "eeprom read at offset %d failed\n",
2915 goto san_mac_addr_clr;
2917 san_mac_addr[i * 2] = (u8)(san_mac_data);
2918 san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8);
2924 /* No addresses available in this EEPROM. It's not necessarily an
2925 * error though, so just wipe the local address and return.
2927 for (i = 0; i < 6; i++)
2928 san_mac_addr[i] = 0xFF;
2933 * ixgbe_get_pcie_msix_count_generic - Gets MSI-X vector count
2934 * @hw: pointer to hardware structure
2936 * Read PCIe configuration space, and get the MSI-X vector count from
2937 * the capabilities table.
2939 u16 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw)
2945 switch (hw->mac.type) {
2946 case ixgbe_mac_82598EB:
2947 pcie_offset = IXGBE_PCIE_MSIX_82598_CAPS;
2948 max_msix_count = IXGBE_MAX_MSIX_VECTORS_82598;
2950 case ixgbe_mac_82599EB:
2951 case ixgbe_mac_X540:
2952 case ixgbe_mac_X550:
2953 case ixgbe_mac_X550EM_x:
2954 case ixgbe_mac_x550em_a:
2955 pcie_offset = IXGBE_PCIE_MSIX_82599_CAPS;
2956 max_msix_count = IXGBE_MAX_MSIX_VECTORS_82599;
2962 msix_count = ixgbe_read_pci_cfg_word(hw, pcie_offset);
2963 if (ixgbe_removed(hw->hw_addr))
2965 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
2967 /* MSI-X count is zero-based in HW */
2970 if (msix_count > max_msix_count)
2971 msix_count = max_msix_count;
2977 * ixgbe_clear_vmdq_generic - Disassociate a VMDq pool index from a rx address
2978 * @hw: pointer to hardware struct
2979 * @rar: receive address register index to disassociate
2980 * @vmdq: VMDq pool index to remove from the rar
2982 s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
2984 u32 mpsar_lo, mpsar_hi;
2985 u32 rar_entries = hw->mac.num_rar_entries;
2987 /* Make sure we are using a valid rar index range */
2988 if (rar >= rar_entries) {
2989 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
2990 return IXGBE_ERR_INVALID_ARGUMENT;
2993 mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
2994 mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
2996 if (ixgbe_removed(hw->hw_addr))
2999 if (!mpsar_lo && !mpsar_hi)
3002 if (vmdq == IXGBE_CLEAR_VMDQ_ALL) {
3004 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
3008 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
3011 } else if (vmdq < 32) {
3012 mpsar_lo &= ~BIT(vmdq);
3013 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo);
3015 mpsar_hi &= ~BIT(vmdq - 32);
3016 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi);
3019 /* was that the last pool using this rar? */
3020 if (mpsar_lo == 0 && mpsar_hi == 0 &&
3021 rar != 0 && rar != hw->mac.san_mac_rar_index)
3022 hw->mac.ops.clear_rar(hw, rar);
3028 * ixgbe_set_vmdq_generic - Associate a VMDq pool index with a rx address
3029 * @hw: pointer to hardware struct
3030 * @rar: receive address register index to associate with a VMDq index
3031 * @vmdq: VMDq pool index
3033 s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
3036 u32 rar_entries = hw->mac.num_rar_entries;
3038 /* Make sure we are using a valid rar index range */
3039 if (rar >= rar_entries) {
3040 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
3041 return IXGBE_ERR_INVALID_ARGUMENT;
3045 mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
3047 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar);
3049 mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
3050 mpsar |= BIT(vmdq - 32);
3051 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar);
3057 * This function should only be involved in the IOV mode.
3058 * In IOV mode, Default pool is next pool after the number of
3059 * VFs advertized and not 0.
3060 * MPSAR table needs to be updated for SAN_MAC RAR [hw->mac.san_mac_rar_index]
3062 * ixgbe_set_vmdq_san_mac - Associate default VMDq pool index with a rx address
3063 * @hw: pointer to hardware struct
3064 * @vmdq: VMDq pool index
3066 s32 ixgbe_set_vmdq_san_mac_generic(struct ixgbe_hw *hw, u32 vmdq)
3068 u32 rar = hw->mac.san_mac_rar_index;
3071 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), BIT(vmdq));
3072 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
3074 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
3075 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), BIT(vmdq - 32));
3082 * ixgbe_init_uta_tables_generic - Initialize the Unicast Table Array
3083 * @hw: pointer to hardware structure
3085 s32 ixgbe_init_uta_tables_generic(struct ixgbe_hw *hw)
3089 for (i = 0; i < 128; i++)
3090 IXGBE_WRITE_REG(hw, IXGBE_UTA(i), 0);
3096 * ixgbe_find_vlvf_slot - find the vlanid or the first empty slot
3097 * @hw: pointer to hardware structure
3098 * @vlan: VLAN id to write to VLAN filter
3100 * return the VLVF index where this VLAN id should be placed
3103 static s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan, bool vlvf_bypass)
3105 s32 regindex, first_empty_slot;
3108 /* short cut the special case */
3112 /* if vlvf_bypass is set we don't want to use an empty slot, we
3113 * will simply bypass the VLVF if there are no entries present in the
3114 * VLVF that contain our VLAN
3116 first_empty_slot = vlvf_bypass ? IXGBE_ERR_NO_SPACE : 0;
3118 /* add VLAN enable bit for comparison */
3119 vlan |= IXGBE_VLVF_VIEN;
3121 /* Search for the vlan id in the VLVF entries. Save off the first empty
3122 * slot found along the way.
3124 * pre-decrement loop covering (IXGBE_VLVF_ENTRIES - 1) .. 1
3126 for (regindex = IXGBE_VLVF_ENTRIES; --regindex;) {
3127 bits = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex));
3130 if (!first_empty_slot && !bits)
3131 first_empty_slot = regindex;
3134 /* If we are here then we didn't find the VLAN. Return first empty
3135 * slot we found during our search, else error.
3137 if (!first_empty_slot)
3138 hw_dbg(hw, "No space in VLVF.\n");
3140 return first_empty_slot ? : IXGBE_ERR_NO_SPACE;
3144 * ixgbe_set_vfta_generic - Set VLAN filter table
3145 * @hw: pointer to hardware structure
3146 * @vlan: VLAN id to write to VLAN filter
3147 * @vind: VMDq output index that maps queue to VLAN id in VFVFB
3148 * @vlan_on: boolean flag to turn on/off VLAN in VFVF
3149 * @vlvf_bypass: boolean flag indicating updating default pool is okay
3151 * Turn on/off specified VLAN in the VLAN filter table.
3153 s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
3154 bool vlan_on, bool vlvf_bypass)
3156 u32 regidx, vfta_delta, vfta, bits;
3159 if ((vlan > 4095) || (vind > 63))
3160 return IXGBE_ERR_PARAM;
3163 * this is a 2 part operation - first the VFTA, then the
3164 * VLVF and VLVFB if VT Mode is set
3165 * We don't write the VFTA until we know the VLVF part succeeded.
3169 * The VFTA is a bitstring made up of 128 32-bit registers
3170 * that enable the particular VLAN id, much like the MTA:
3171 * bits[11-5]: which register
3172 * bits[4-0]: which bit in the register
3175 vfta_delta = BIT(vlan % 32);
3176 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(regidx));
3178 /* vfta_delta represents the difference between the current value
3179 * of vfta and the value we want in the register. Since the diff
3180 * is an XOR mask we can just update vfta using an XOR.
3182 vfta_delta &= vlan_on ? ~vfta : vfta;
3188 * make sure the vlan is in VLVF
3189 * set the vind bit in the matching VLVFB
3191 * clear the pool bit and possibly the vind
3193 if (!(IXGBE_READ_REG(hw, IXGBE_VT_CTL) & IXGBE_VT_CTL_VT_ENABLE))
3196 vlvf_index = ixgbe_find_vlvf_slot(hw, vlan, vlvf_bypass);
3197 if (vlvf_index < 0) {
3203 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + vind / 32));
3205 /* set the pool bit */
3206 bits |= BIT(vind % 32);
3210 /* clear the pool bit */
3211 bits ^= BIT(vind % 32);
3214 !IXGBE_READ_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + 1 - vind / 32))) {
3215 /* Clear VFTA first, then disable VLVF. Otherwise
3216 * we run the risk of stray packets leaking into
3217 * the PF via the default pool
3220 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regidx), vfta);
3222 /* disable VLVF and clear remaining bit from pool */
3223 IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), 0);
3224 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + vind / 32), 0);
3229 /* If there are still bits set in the VLVFB registers
3230 * for the VLAN ID indicated we need to see if the
3231 * caller is requesting that we clear the VFTA entry bit.
3232 * If the caller has requested that we clear the VFTA
3233 * entry bit but there are still pools/VFs using this VLAN
3234 * ID entry then ignore the request. We're not worried
3235 * about the case where we're turning the VFTA VLAN ID
3236 * entry bit on, only when requested to turn it off as
3237 * there may be multiple pools and/or VFs using the
3238 * VLAN ID entry. In that case we cannot clear the
3239 * VFTA bit until all pools/VFs using that VLAN ID have also
3240 * been cleared. This will be indicated by "bits" being
3246 /* record pool change and enable VLAN ID if not already enabled */
3247 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + vind / 32), bits);
3248 IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), IXGBE_VLVF_VIEN | vlan);
3251 /* Update VFTA now that we are ready for traffic */
3253 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regidx), vfta);
3259 * ixgbe_clear_vfta_generic - Clear VLAN filter table
3260 * @hw: pointer to hardware structure
3262 * Clears the VLAN filer table, and the VMDq index associated with the filter
3264 s32 ixgbe_clear_vfta_generic(struct ixgbe_hw *hw)
3268 for (offset = 0; offset < hw->mac.vft_size; offset++)
3269 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
3271 for (offset = 0; offset < IXGBE_VLVF_ENTRIES; offset++) {
3272 IXGBE_WRITE_REG(hw, IXGBE_VLVF(offset), 0);
3273 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset * 2), 0);
3274 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset * 2 + 1), 0);
3281 * ixgbe_need_crosstalk_fix - Determine if we need to do cross talk fix
3282 * @hw: pointer to hardware structure
3284 * Contains the logic to identify if we need to verify link for the
3287 static bool ixgbe_need_crosstalk_fix(struct ixgbe_hw *hw)
3289 /* Does FW say we need the fix */
3290 if (!hw->need_crosstalk_fix)
3293 /* Only consider SFP+ PHYs i.e. media type fiber */
3294 switch (hw->mac.ops.get_media_type(hw)) {
3295 case ixgbe_media_type_fiber:
3296 case ixgbe_media_type_fiber_qsfp:
3306 * ixgbe_check_mac_link_generic - Determine link and speed status
3307 * @hw: pointer to hardware structure
3308 * @speed: pointer to link speed
3309 * @link_up: true when link is up
3310 * @link_up_wait_to_complete: bool used to wait for link up or not
3312 * Reads the links register to determine if link is up and the current speed
3314 s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
3315 bool *link_up, bool link_up_wait_to_complete)
3317 u32 links_reg, links_orig;
3320 /* If Crosstalk fix enabled do the sanity check of making sure
3321 * the SFP+ cage is full.
3323 if (ixgbe_need_crosstalk_fix(hw)) {
3326 switch (hw->mac.type) {
3327 case ixgbe_mac_82599EB:
3328 sfp_cage_full = IXGBE_READ_REG(hw, IXGBE_ESDP) &
3331 case ixgbe_mac_X550EM_x:
3332 case ixgbe_mac_x550em_a:
3333 sfp_cage_full = IXGBE_READ_REG(hw, IXGBE_ESDP) &
3337 /* sanity check - No SFP+ devices here */
3338 sfp_cage_full = false;
3342 if (!sfp_cage_full) {
3344 *speed = IXGBE_LINK_SPEED_UNKNOWN;
3349 /* clear the old state */
3350 links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS);
3352 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
3354 if (links_orig != links_reg) {
3355 hw_dbg(hw, "LINKS changed from %08X to %08X\n",
3356 links_orig, links_reg);
3359 if (link_up_wait_to_complete) {
3360 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
3361 if (links_reg & IXGBE_LINKS_UP) {
3368 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
3371 if (links_reg & IXGBE_LINKS_UP)
3377 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
3378 case IXGBE_LINKS_SPEED_10G_82599:
3379 if ((hw->mac.type >= ixgbe_mac_X550) &&
3380 (links_reg & IXGBE_LINKS_SPEED_NON_STD))
3381 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
3383 *speed = IXGBE_LINK_SPEED_10GB_FULL;
3385 case IXGBE_LINKS_SPEED_1G_82599:
3386 *speed = IXGBE_LINK_SPEED_1GB_FULL;
3388 case IXGBE_LINKS_SPEED_100_82599:
3389 if ((hw->mac.type >= ixgbe_mac_X550) &&
3390 (links_reg & IXGBE_LINKS_SPEED_NON_STD))
3391 *speed = IXGBE_LINK_SPEED_5GB_FULL;
3393 *speed = IXGBE_LINK_SPEED_100_FULL;
3395 case IXGBE_LINKS_SPEED_10_X550EM_A:
3396 *speed = IXGBE_LINK_SPEED_UNKNOWN;
3397 if (hw->device_id == IXGBE_DEV_ID_X550EM_A_1G_T ||
3398 hw->device_id == IXGBE_DEV_ID_X550EM_A_1G_T_L) {
3399 *speed = IXGBE_LINK_SPEED_10_FULL;
3403 *speed = IXGBE_LINK_SPEED_UNKNOWN;
3410 * ixgbe_get_wwn_prefix_generic - Get alternative WWNN/WWPN prefix from
3412 * @hw: pointer to hardware structure
3413 * @wwnn_prefix: the alternative WWNN prefix
3414 * @wwpn_prefix: the alternative WWPN prefix
3416 * This function will read the EEPROM from the alternative SAN MAC address
3417 * block to check the support for the alternative WWNN/WWPN prefix support.
3419 s32 ixgbe_get_wwn_prefix_generic(struct ixgbe_hw *hw, u16 *wwnn_prefix,
3423 u16 alt_san_mac_blk_offset;
3425 /* clear output first */
3426 *wwnn_prefix = 0xFFFF;
3427 *wwpn_prefix = 0xFFFF;
3429 /* check if alternative SAN MAC is supported */
3430 offset = IXGBE_ALT_SAN_MAC_ADDR_BLK_PTR;
3431 if (hw->eeprom.ops.read(hw, offset, &alt_san_mac_blk_offset))
3432 goto wwn_prefix_err;
3434 if ((alt_san_mac_blk_offset == 0) ||
3435 (alt_san_mac_blk_offset == 0xFFFF))
3438 /* check capability in alternative san mac address block */
3439 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET;
3440 if (hw->eeprom.ops.read(hw, offset, &caps))
3441 goto wwn_prefix_err;
3442 if (!(caps & IXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN))
3445 /* get the corresponding prefix for WWNN/WWPN */
3446 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET;
3447 if (hw->eeprom.ops.read(hw, offset, wwnn_prefix))
3448 hw_err(hw, "eeprom read at offset %d failed\n", offset);
3450 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET;
3451 if (hw->eeprom.ops.read(hw, offset, wwpn_prefix))
3452 goto wwn_prefix_err;
3457 hw_err(hw, "eeprom read at offset %d failed\n", offset);
3462 * ixgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing
3463 * @hw: pointer to hardware structure
3464 * @enable: enable or disable switch for MAC anti-spoofing
3465 * @vf: Virtual Function pool - VF Pool to set for MAC anti-spoofing
3468 void ixgbe_set_mac_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf)
3470 int vf_target_reg = vf >> 3;
3471 int vf_target_shift = vf % 8;
3474 if (hw->mac.type == ixgbe_mac_82598EB)
3477 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
3479 pfvfspoof |= BIT(vf_target_shift);
3481 pfvfspoof &= ~BIT(vf_target_shift);
3482 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
3486 * ixgbe_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing
3487 * @hw: pointer to hardware structure
3488 * @enable: enable or disable switch for VLAN anti-spoofing
3489 * @pf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing
3492 void ixgbe_set_vlan_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf)
3494 int vf_target_reg = vf >> 3;
3495 int vf_target_shift = vf % 8 + IXGBE_SPOOF_VLANAS_SHIFT;
3498 if (hw->mac.type == ixgbe_mac_82598EB)
3501 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
3503 pfvfspoof |= BIT(vf_target_shift);
3505 pfvfspoof &= ~BIT(vf_target_shift);
3506 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
3510 * ixgbe_get_device_caps_generic - Get additional device capabilities
3511 * @hw: pointer to hardware structure
3512 * @device_caps: the EEPROM word with the extra device capabilities
3514 * This function will read the EEPROM location for the device capabilities,
3515 * and return the word through device_caps.
3517 s32 ixgbe_get_device_caps_generic(struct ixgbe_hw *hw, u16 *device_caps)
3519 hw->eeprom.ops.read(hw, IXGBE_DEVICE_CAPS, device_caps);
3525 * ixgbe_set_rxpba_generic - Initialize RX packet buffer
3526 * @hw: pointer to hardware structure
3527 * @num_pb: number of packet buffers to allocate
3528 * @headroom: reserve n KB of headroom
3529 * @strategy: packet buffer allocation strategy
3531 void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw,
3536 u32 pbsize = hw->mac.rx_pb_size;
3538 u32 rxpktsize, txpktsize, txpbthresh;
3540 /* Reserve headroom */
3546 /* Divide remaining packet buffer space amongst the number
3547 * of packet buffers requested using supplied strategy.
3550 case (PBA_STRATEGY_WEIGHTED):
3551 /* pba_80_48 strategy weight first half of packet buffer with
3552 * 5/8 of the packet buffer space.
3554 rxpktsize = ((pbsize * 5 * 2) / (num_pb * 8));
3555 pbsize -= rxpktsize * (num_pb / 2);
3556 rxpktsize <<= IXGBE_RXPBSIZE_SHIFT;
3557 for (; i < (num_pb / 2); i++)
3558 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
3559 /* fall through - configure remaining packet buffers */
3560 case (PBA_STRATEGY_EQUAL):
3561 /* Divide the remaining Rx packet buffer evenly among the TCs */
3562 rxpktsize = (pbsize / (num_pb - i)) << IXGBE_RXPBSIZE_SHIFT;
3563 for (; i < num_pb; i++)
3564 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
3571 * Setup Tx packet buffer and threshold equally for all TCs
3572 * TXPBTHRESH register is set in K so divide by 1024 and subtract
3573 * 10 since the largest packet we support is just over 9K.
3575 txpktsize = IXGBE_TXPBSIZE_MAX / num_pb;
3576 txpbthresh = (txpktsize / 1024) - IXGBE_TXPKT_SIZE_MAX;
3577 for (i = 0; i < num_pb; i++) {
3578 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize);
3579 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh);
3582 /* Clear unused TCs, if any, to zero buffer size*/
3583 for (; i < IXGBE_MAX_PB; i++) {
3584 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
3585 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0);
3586 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0);
3591 * ixgbe_calculate_checksum - Calculate checksum for buffer
3592 * @buffer: pointer to EEPROM
3593 * @length: size of EEPROM to calculate a checksum for
3595 * Calculates the checksum for some buffer on a specified length. The
3596 * checksum calculated is returned.
3598 u8 ixgbe_calculate_checksum(u8 *buffer, u32 length)
3606 for (i = 0; i < length; i++)
3609 return (u8) (0 - sum);
3613 * ixgbe_hic_unlocked - Issue command to manageability block unlocked
3614 * @hw: pointer to the HW structure
3615 * @buffer: command to write and where the return status will be placed
3616 * @length: length of buffer, must be multiple of 4 bytes
3617 * @timeout: time in ms to wait for command completion
3619 * Communicates with the manageability block. On success return 0
3620 * else returns semaphore error when encountering an error acquiring
3621 * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
3623 * This function assumes that the IXGBE_GSSR_SW_MNG_SM semaphore is held
3626 s32 ixgbe_hic_unlocked(struct ixgbe_hw *hw, u32 *buffer, u32 length,
3632 if (!length || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
3633 hw_dbg(hw, "Buffer length failure buffersize-%d.\n", length);
3634 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
3637 /* Set bit 9 of FWSTS clearing FW reset indication */
3638 fwsts = IXGBE_READ_REG(hw, IXGBE_FWSTS);
3639 IXGBE_WRITE_REG(hw, IXGBE_FWSTS, fwsts | IXGBE_FWSTS_FWRI);
3641 /* Check that the host interface is enabled. */
3642 hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
3643 if (!(hicr & IXGBE_HICR_EN)) {
3644 hw_dbg(hw, "IXGBE_HOST_EN bit disabled.\n");
3645 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
3648 /* Calculate length in DWORDs. We must be DWORD aligned */
3649 if (length % sizeof(u32)) {
3650 hw_dbg(hw, "Buffer length failure, not aligned to dword");
3651 return IXGBE_ERR_INVALID_ARGUMENT;
3654 dword_len = length >> 2;
3656 /* The device driver writes the relevant command block
3657 * into the ram area.
3659 for (i = 0; i < dword_len; i++)
3660 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_FLEX_MNG,
3661 i, cpu_to_le32(buffer[i]));
3663 /* Setting this bit tells the ARC that a new command is pending. */
3664 IXGBE_WRITE_REG(hw, IXGBE_HICR, hicr | IXGBE_HICR_C);
3666 for (i = 0; i < timeout; i++) {
3667 hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
3668 if (!(hicr & IXGBE_HICR_C))
3670 usleep_range(1000, 2000);
3673 /* Check command successful completion. */
3674 if ((timeout && i == timeout) ||
3675 !(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV))
3676 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
3682 * ixgbe_host_interface_command - Issue command to manageability block
3683 * @hw: pointer to the HW structure
3684 * @buffer: contains the command to write and where the return status will
3686 * @length: length of buffer, must be multiple of 4 bytes
3687 * @timeout: time in ms to wait for command completion
3688 * @return_data: read and return data from the buffer (true) or not (false)
3689 * Needed because FW structures are big endian and decoding of
3690 * these fields can be 8 bit or 16 bit based on command. Decoding
3691 * is not easily understood without making a table of commands.
3692 * So we will leave this up to the caller to read back the data
3695 * Communicates with the manageability block. On success return 0
3696 * else return IXGBE_ERR_HOST_INTERFACE_COMMAND.
3698 s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, void *buffer,
3699 u32 length, u32 timeout,
3702 u32 hdr_size = sizeof(struct ixgbe_hic_hdr);
3704 struct ixgbe_hic_hdr hdr;
3707 u16 buf_len, dword_len;
3711 if (!length || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
3712 hw_dbg(hw, "Buffer length failure buffersize-%d.\n", length);
3713 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
3715 /* Take management host interface semaphore */
3716 status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
3720 status = ixgbe_hic_unlocked(hw, buffer, length, timeout);
3727 /* Calculate length in DWORDs */
3728 dword_len = hdr_size >> 2;
3730 /* first pull in the header so we know the buffer length */
3731 for (bi = 0; bi < dword_len; bi++) {
3732 bp->u32arr[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi);
3733 le32_to_cpus(&bp->u32arr[bi]);
3736 /* If there is any thing in data position pull it in */
3737 buf_len = bp->hdr.buf_len;
3741 if (length < round_up(buf_len, 4) + hdr_size) {
3742 hw_dbg(hw, "Buffer not large enough for reply message.\n");
3743 status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
3747 /* Calculate length in DWORDs, add 3 for odd lengths */
3748 dword_len = (buf_len + 3) >> 2;
3750 /* Pull in the rest of the buffer (bi is where we left off) */
3751 for (; bi <= dword_len; bi++) {
3752 bp->u32arr[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi);
3753 le32_to_cpus(&bp->u32arr[bi]);
3757 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
3763 * ixgbe_set_fw_drv_ver_generic - Sends driver version to firmware
3764 * @hw: pointer to the HW structure
3765 * @maj: driver version major number
3766 * @min: driver version minor number
3767 * @build: driver version build number
3768 * @sub: driver version sub build number
3769 * @len: length of driver_ver string
3770 * @driver_ver: driver string
3772 * Sends driver version number to firmware through the manageability
3773 * block. On success return 0
3774 * else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
3775 * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
3777 s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min,
3778 u8 build, u8 sub, __always_unused u16 len,
3779 __always_unused const char *driver_ver)
3781 struct ixgbe_hic_drv_info fw_cmd;
3785 fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
3786 fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN;
3787 fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
3788 fw_cmd.port_num = hw->bus.func;
3789 fw_cmd.ver_maj = maj;
3790 fw_cmd.ver_min = min;
3791 fw_cmd.ver_build = build;
3792 fw_cmd.ver_sub = sub;
3793 fw_cmd.hdr.checksum = 0;
3796 fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
3797 (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
3799 for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
3800 ret_val = ixgbe_host_interface_command(hw, &fw_cmd,
3802 IXGBE_HI_COMMAND_TIMEOUT,
3807 if (fw_cmd.hdr.cmd_or_resp.ret_status ==
3808 FW_CEM_RESP_STATUS_SUCCESS)
3811 ret_val = IXGBE_ERR_HOST_INTERFACE_COMMAND;
3820 * ixgbe_clear_tx_pending - Clear pending TX work from the PCIe fifo
3821 * @hw: pointer to the hardware structure
3823 * The 82599 and x540 MACs can experience issues if TX work is still pending
3824 * when a reset occurs. This function prevents this by flushing the PCIe
3825 * buffers on the system.
3827 void ixgbe_clear_tx_pending(struct ixgbe_hw *hw)
3829 u32 gcr_ext, hlreg0, i, poll;
3833 * If double reset is not requested then all transactions should
3834 * already be clear and as such there is no work to do
3836 if (!(hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED))
3840 * Set loopback enable to prevent any transmits from being sent
3841 * should the link come up. This assumes that the RXCTRL.RXEN bit
3842 * has already been cleared.
3844 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
3845 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0 | IXGBE_HLREG0_LPBK);
3847 /* wait for a last completion before clearing buffers */
3848 IXGBE_WRITE_FLUSH(hw);
3849 usleep_range(3000, 6000);
3851 /* Before proceeding, make sure that the PCIe block does not have
3852 * transactions pending.
3854 poll = ixgbe_pcie_timeout_poll(hw);
3855 for (i = 0; i < poll; i++) {
3856 usleep_range(100, 200);
3857 value = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_STATUS);
3858 if (ixgbe_removed(hw->hw_addr))
3860 if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING))
3864 /* initiate cleaning flow for buffers in the PCIe transaction layer */
3865 gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
3866 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT,
3867 gcr_ext | IXGBE_GCR_EXT_BUFFERS_CLEAR);
3869 /* Flush all writes and allow 20usec for all transactions to clear */
3870 IXGBE_WRITE_FLUSH(hw);
3873 /* restore previous register values */
3874 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
3875 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
3878 static const u8 ixgbe_emc_temp_data[4] = {
3879 IXGBE_EMC_INTERNAL_DATA,
3880 IXGBE_EMC_DIODE1_DATA,
3881 IXGBE_EMC_DIODE2_DATA,
3882 IXGBE_EMC_DIODE3_DATA
3884 static const u8 ixgbe_emc_therm_limit[4] = {
3885 IXGBE_EMC_INTERNAL_THERM_LIMIT,
3886 IXGBE_EMC_DIODE1_THERM_LIMIT,
3887 IXGBE_EMC_DIODE2_THERM_LIMIT,
3888 IXGBE_EMC_DIODE3_THERM_LIMIT
3892 * ixgbe_get_ets_data - Extracts the ETS bit data
3893 * @hw: pointer to hardware structure
3894 * @ets_cfg: extected ETS data
3895 * @ets_offset: offset of ETS data
3897 * Returns error code.
3899 static s32 ixgbe_get_ets_data(struct ixgbe_hw *hw, u16 *ets_cfg,
3904 status = hw->eeprom.ops.read(hw, IXGBE_ETS_CFG, ets_offset);
3908 if ((*ets_offset == 0x0000) || (*ets_offset == 0xFFFF))
3909 return IXGBE_NOT_IMPLEMENTED;
3911 status = hw->eeprom.ops.read(hw, *ets_offset, ets_cfg);
3915 if ((*ets_cfg & IXGBE_ETS_TYPE_MASK) != IXGBE_ETS_TYPE_EMC_SHIFTED)
3916 return IXGBE_NOT_IMPLEMENTED;
3922 * ixgbe_get_thermal_sensor_data - Gathers thermal sensor data
3923 * @hw: pointer to hardware structure
3925 * Returns the thermal sensor data structure
3927 s32 ixgbe_get_thermal_sensor_data_generic(struct ixgbe_hw *hw)
3935 struct ixgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data;
3937 /* Only support thermal sensors attached to physical port 0 */
3938 if ((IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1))
3939 return IXGBE_NOT_IMPLEMENTED;
3941 status = ixgbe_get_ets_data(hw, &ets_cfg, &ets_offset);
3945 num_sensors = (ets_cfg & IXGBE_ETS_NUM_SENSORS_MASK);
3946 if (num_sensors > IXGBE_MAX_SENSORS)
3947 num_sensors = IXGBE_MAX_SENSORS;
3949 for (i = 0; i < num_sensors; i++) {
3953 status = hw->eeprom.ops.read(hw, (ets_offset + 1 + i),
3958 sensor_index = ((ets_sensor & IXGBE_ETS_DATA_INDEX_MASK) >>
3959 IXGBE_ETS_DATA_INDEX_SHIFT);
3960 sensor_location = ((ets_sensor & IXGBE_ETS_DATA_LOC_MASK) >>
3961 IXGBE_ETS_DATA_LOC_SHIFT);
3963 if (sensor_location != 0) {
3964 status = hw->phy.ops.read_i2c_byte(hw,
3965 ixgbe_emc_temp_data[sensor_index],
3966 IXGBE_I2C_THERMAL_SENSOR_ADDR,
3967 &data->sensor[i].temp);
3977 * ixgbe_init_thermal_sensor_thresh_generic - Inits thermal sensor thresholds
3978 * @hw: pointer to hardware structure
3980 * Inits the thermal sensor thresholds according to the NVM map
3981 * and save off the threshold and location values into mac.thermal_sensor_data
3983 s32 ixgbe_init_thermal_sensor_thresh_generic(struct ixgbe_hw *hw)
3989 u8 low_thresh_delta;
3993 struct ixgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data;
3995 memset(data, 0, sizeof(struct ixgbe_thermal_sensor_data));
3997 /* Only support thermal sensors attached to physical port 0 */
3998 if ((IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1))
3999 return IXGBE_NOT_IMPLEMENTED;
4001 status = ixgbe_get_ets_data(hw, &ets_cfg, &ets_offset);
4005 low_thresh_delta = ((ets_cfg & IXGBE_ETS_LTHRES_DELTA_MASK) >>
4006 IXGBE_ETS_LTHRES_DELTA_SHIFT);
4007 num_sensors = (ets_cfg & IXGBE_ETS_NUM_SENSORS_MASK);
4008 if (num_sensors > IXGBE_MAX_SENSORS)
4009 num_sensors = IXGBE_MAX_SENSORS;
4011 for (i = 0; i < num_sensors; i++) {
4015 if (hw->eeprom.ops.read(hw, ets_offset + 1 + i, &ets_sensor)) {
4016 hw_err(hw, "eeprom read at offset %d failed\n",
4017 ets_offset + 1 + i);
4020 sensor_index = ((ets_sensor & IXGBE_ETS_DATA_INDEX_MASK) >>
4021 IXGBE_ETS_DATA_INDEX_SHIFT);
4022 sensor_location = ((ets_sensor & IXGBE_ETS_DATA_LOC_MASK) >>
4023 IXGBE_ETS_DATA_LOC_SHIFT);
4024 therm_limit = ets_sensor & IXGBE_ETS_DATA_HTHRESH_MASK;
4026 hw->phy.ops.write_i2c_byte(hw,
4027 ixgbe_emc_therm_limit[sensor_index],
4028 IXGBE_I2C_THERMAL_SENSOR_ADDR, therm_limit);
4030 if (sensor_location == 0)
4033 data->sensor[i].location = sensor_location;
4034 data->sensor[i].caution_thresh = therm_limit;
4035 data->sensor[i].max_op_thresh = therm_limit - low_thresh_delta;
4041 void ixgbe_disable_rx_generic(struct ixgbe_hw *hw)
4045 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4046 if (rxctrl & IXGBE_RXCTRL_RXEN) {
4047 if (hw->mac.type != ixgbe_mac_82598EB) {
4050 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
4051 if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
4052 pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
4053 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
4054 hw->mac.set_lben = true;
4056 hw->mac.set_lben = false;
4059 rxctrl &= ~IXGBE_RXCTRL_RXEN;
4060 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
4064 void ixgbe_enable_rx_generic(struct ixgbe_hw *hw)
4068 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4069 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, (rxctrl | IXGBE_RXCTRL_RXEN));
4071 if (hw->mac.type != ixgbe_mac_82598EB) {
4072 if (hw->mac.set_lben) {
4075 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
4076 pfdtxgswc |= IXGBE_PFDTXGSWC_VT_LBEN;
4077 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
4078 hw->mac.set_lben = false;
4083 /** ixgbe_mng_present - returns true when management capability is present
4084 * @hw: pointer to hardware structure
4086 bool ixgbe_mng_present(struct ixgbe_hw *hw)
4090 if (hw->mac.type < ixgbe_mac_82599EB)
4093 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
4094 fwsm &= IXGBE_FWSM_MODE_MASK;
4095 return fwsm == IXGBE_FWSM_FW_MODE_PT;
4099 * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
4100 * @hw: pointer to hardware structure
4101 * @speed: new link speed
4102 * @autoneg_wait_to_complete: true when waiting for completion is needed
4104 * Set the link speed in the MAC and/or PHY register and restarts link.
4106 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
4107 ixgbe_link_speed speed,
4108 bool autoneg_wait_to_complete)
4110 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
4111 ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN;
4115 bool autoneg, link_up = false;
4117 /* Mask off requested but non-supported speeds */
4118 status = hw->mac.ops.get_link_capabilities(hw, &link_speed, &autoneg);
4122 speed &= link_speed;
4124 /* Try each speed one by one, highest priority first. We do this in
4125 * software because 10Gb fiber doesn't support speed autonegotiation.
4127 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
4129 highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
4131 /* Set the module link speed */
4132 switch (hw->phy.media_type) {
4133 case ixgbe_media_type_fiber:
4134 hw->mac.ops.set_rate_select_speed(hw,
4135 IXGBE_LINK_SPEED_10GB_FULL);
4137 case ixgbe_media_type_fiber_qsfp:
4138 /* QSFP module automatically detects MAC link speed */
4141 hw_dbg(hw, "Unexpected media type\n");
4145 /* Allow module to change analog characteristics (1G->10G) */
4148 status = hw->mac.ops.setup_mac_link(hw,
4149 IXGBE_LINK_SPEED_10GB_FULL,
4150 autoneg_wait_to_complete);
4154 /* Flap the Tx laser if it has not already been done */
4155 if (hw->mac.ops.flap_tx_laser)
4156 hw->mac.ops.flap_tx_laser(hw);
4158 /* Wait for the controller to acquire link. Per IEEE 802.3ap,
4159 * Section 73.10.2, we may have to wait up to 500ms if KR is
4160 * attempted. 82599 uses the same timing for 10g SFI.
4162 for (i = 0; i < 5; i++) {
4163 /* Wait for the link partner to also set speed */
4166 /* If we have link, just jump out */
4167 status = hw->mac.ops.check_link(hw, &link_speed,
4177 if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
4179 if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
4180 highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
4182 /* Set the module link speed */
4183 switch (hw->phy.media_type) {
4184 case ixgbe_media_type_fiber:
4185 hw->mac.ops.set_rate_select_speed(hw,
4186 IXGBE_LINK_SPEED_1GB_FULL);
4188 case ixgbe_media_type_fiber_qsfp:
4189 /* QSFP module automatically detects link speed */
4192 hw_dbg(hw, "Unexpected media type\n");
4196 /* Allow module to change analog characteristics (10G->1G) */
4199 status = hw->mac.ops.setup_mac_link(hw,
4200 IXGBE_LINK_SPEED_1GB_FULL,
4201 autoneg_wait_to_complete);
4205 /* Flap the Tx laser if it has not already been done */
4206 if (hw->mac.ops.flap_tx_laser)
4207 hw->mac.ops.flap_tx_laser(hw);
4209 /* Wait for the link partner to also set speed */
4212 /* If we have link, just jump out */
4213 status = hw->mac.ops.check_link(hw, &link_speed, &link_up,
4222 /* We didn't get link. Configure back to the highest speed we tried,
4223 * (if there was more than one). We call ourselves back with just the
4224 * single highest speed that the user requested.
4227 status = ixgbe_setup_mac_link_multispeed_fiber(hw,
4229 autoneg_wait_to_complete);
4232 /* Set autoneg_advertised value based on input link speed */
4233 hw->phy.autoneg_advertised = 0;
4235 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
4236 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
4238 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
4239 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
4245 * ixgbe_set_soft_rate_select_speed - Set module link speed
4246 * @hw: pointer to hardware structure
4247 * @speed: link speed to set
4249 * Set module link speed via the soft rate select.
4251 void ixgbe_set_soft_rate_select_speed(struct ixgbe_hw *hw,
4252 ixgbe_link_speed speed)
4258 case IXGBE_LINK_SPEED_10GB_FULL:
4259 /* one bit mask same as setting on */
4260 rs = IXGBE_SFF_SOFT_RS_SELECT_10G;
4262 case IXGBE_LINK_SPEED_1GB_FULL:
4263 rs = IXGBE_SFF_SOFT_RS_SELECT_1G;
4266 hw_dbg(hw, "Invalid fixed module speed\n");
4271 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
4272 IXGBE_I2C_EEPROM_DEV_ADDR2,
4275 hw_dbg(hw, "Failed to read Rx Rate Select RS0\n");
4279 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs;
4281 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
4282 IXGBE_I2C_EEPROM_DEV_ADDR2,
4285 hw_dbg(hw, "Failed to write Rx Rate Select RS0\n");
4290 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
4291 IXGBE_I2C_EEPROM_DEV_ADDR2,
4294 hw_dbg(hw, "Failed to read Rx Rate Select RS1\n");
4298 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs;
4300 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
4301 IXGBE_I2C_EEPROM_DEV_ADDR2,
4304 hw_dbg(hw, "Failed to write Rx Rate Select RS1\n");