1 /*******************************************************************************
3 Copyright (c) 2001-2015, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ***************************************************************************/
34 #include "ixgbe_common.h"
35 #include "ixgbe_phy.h"
36 #include "ixgbe_dcb.h"
37 #include "ixgbe_dcb_82599.h"
38 #include "ixgbe_api.h"
40 STATIC s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw);
41 STATIC s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw);
42 STATIC void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw);
43 STATIC s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw);
44 STATIC void ixgbe_standby_eeprom(struct ixgbe_hw *hw);
45 STATIC void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
47 STATIC u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count);
48 STATIC void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
49 STATIC void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
50 STATIC void ixgbe_release_eeprom(struct ixgbe_hw *hw);
52 STATIC s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
53 STATIC s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw,
55 STATIC s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
56 u16 words, u16 *data);
57 STATIC s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
58 u16 words, u16 *data);
59 STATIC s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw,
63 * ixgbe_init_ops_generic - Inits function ptrs
64 * @hw: pointer to the hardware structure
66 * Initialize the function pointers.
68 s32 ixgbe_init_ops_generic(struct ixgbe_hw *hw)
70 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
71 struct ixgbe_mac_info *mac = &hw->mac;
72 u32 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
74 DEBUGFUNC("ixgbe_init_ops_generic");
77 eeprom->ops.init_params = ixgbe_init_eeprom_params_generic;
78 /* If EEPROM is valid (bit 8 = 1), use EERD otherwise use bit bang */
79 if (eec & IXGBE_EEC_PRES) {
80 eeprom->ops.read = ixgbe_read_eerd_generic;
81 eeprom->ops.read_buffer = ixgbe_read_eerd_buffer_generic;
83 eeprom->ops.read = ixgbe_read_eeprom_bit_bang_generic;
84 eeprom->ops.read_buffer =
85 ixgbe_read_eeprom_buffer_bit_bang_generic;
87 eeprom->ops.write = ixgbe_write_eeprom_generic;
88 eeprom->ops.write_buffer = ixgbe_write_eeprom_buffer_bit_bang_generic;
89 eeprom->ops.validate_checksum =
90 ixgbe_validate_eeprom_checksum_generic;
91 eeprom->ops.update_checksum = ixgbe_update_eeprom_checksum_generic;
92 eeprom->ops.calc_checksum = ixgbe_calc_eeprom_checksum_generic;
95 mac->ops.init_hw = ixgbe_init_hw_generic;
96 mac->ops.reset_hw = NULL;
97 mac->ops.start_hw = ixgbe_start_hw_generic;
98 mac->ops.clear_hw_cntrs = ixgbe_clear_hw_cntrs_generic;
99 mac->ops.get_media_type = NULL;
100 mac->ops.get_supported_physical_layer = NULL;
101 mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_generic;
102 mac->ops.get_mac_addr = ixgbe_get_mac_addr_generic;
103 mac->ops.stop_adapter = ixgbe_stop_adapter_generic;
104 mac->ops.get_bus_info = ixgbe_get_bus_info_generic;
105 mac->ops.set_lan_id = ixgbe_set_lan_id_multi_port_pcie;
106 mac->ops.acquire_swfw_sync = ixgbe_acquire_swfw_sync;
107 mac->ops.release_swfw_sync = ixgbe_release_swfw_sync;
108 mac->ops.prot_autoc_read = prot_autoc_read_generic;
109 mac->ops.prot_autoc_write = prot_autoc_write_generic;
112 mac->ops.led_on = ixgbe_led_on_generic;
113 mac->ops.led_off = ixgbe_led_off_generic;
114 mac->ops.blink_led_start = ixgbe_blink_led_start_generic;
115 mac->ops.blink_led_stop = ixgbe_blink_led_stop_generic;
117 /* RAR, Multicast, VLAN */
118 mac->ops.set_rar = ixgbe_set_rar_generic;
119 mac->ops.clear_rar = ixgbe_clear_rar_generic;
120 mac->ops.insert_mac_addr = NULL;
121 mac->ops.set_vmdq = NULL;
122 mac->ops.clear_vmdq = NULL;
123 mac->ops.init_rx_addrs = ixgbe_init_rx_addrs_generic;
124 mac->ops.update_uc_addr_list = ixgbe_update_uc_addr_list_generic;
125 mac->ops.update_mc_addr_list = ixgbe_update_mc_addr_list_generic;
126 mac->ops.enable_mc = ixgbe_enable_mc_generic;
127 mac->ops.disable_mc = ixgbe_disable_mc_generic;
128 mac->ops.clear_vfta = NULL;
129 mac->ops.set_vfta = NULL;
130 mac->ops.set_vlvf = NULL;
131 mac->ops.init_uta_tables = NULL;
132 mac->ops.enable_rx = ixgbe_enable_rx_generic;
133 mac->ops.disable_rx = ixgbe_disable_rx_generic;
136 mac->ops.fc_enable = ixgbe_fc_enable_generic;
137 mac->ops.setup_fc = ixgbe_setup_fc_generic;
140 mac->ops.get_link_capabilities = NULL;
141 mac->ops.setup_link = NULL;
142 mac->ops.check_link = NULL;
143 mac->ops.dmac_config = NULL;
144 mac->ops.dmac_update_tcs = NULL;
145 mac->ops.dmac_config_tcs = NULL;
147 return IXGBE_SUCCESS;
151 * ixgbe_device_supports_autoneg_fc - Check if device supports autonegotiation
153 * @hw: pointer to hardware structure
155 * This function returns true if the device supports flow control
156 * autonegotiation, and false if it does not.
159 bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
161 bool supported = false;
162 ixgbe_link_speed speed;
165 DEBUGFUNC("ixgbe_device_supports_autoneg_fc");
167 switch (hw->phy.media_type) {
168 case ixgbe_media_type_fiber_qsfp:
169 case ixgbe_media_type_fiber:
170 hw->mac.ops.check_link(hw, &speed, &link_up, false);
171 /* if link is down, assume supported */
173 supported = speed == IXGBE_LINK_SPEED_1GB_FULL ?
178 case ixgbe_media_type_backplane:
181 case ixgbe_media_type_copper:
182 /* only some copper devices support flow control autoneg */
183 switch (hw->device_id) {
184 case IXGBE_DEV_ID_82599_T3_LOM:
185 case IXGBE_DEV_ID_X540T:
186 case IXGBE_DEV_ID_X540T1:
187 case IXGBE_DEV_ID_X550T:
188 case IXGBE_DEV_ID_X550T1:
189 case IXGBE_DEV_ID_X550EM_X_10G_T:
199 ERROR_REPORT2(IXGBE_ERROR_UNSUPPORTED,
200 "Device %x does not support flow control autoneg",
206 * ixgbe_setup_fc_generic - Set up flow control
207 * @hw: pointer to hardware structure
209 * Called at init time to set up flow control.
211 s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
213 s32 ret_val = IXGBE_SUCCESS;
214 u32 reg = 0, reg_bp = 0;
218 DEBUGFUNC("ixgbe_setup_fc_generic");
220 /* Validate the requested mode */
221 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
222 ERROR_REPORT1(IXGBE_ERROR_UNSUPPORTED,
223 "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
224 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
229 * 10gig parts do not have a word in the EEPROM to determine the
230 * default flow control setting, so we explicitly set it to full.
232 if (hw->fc.requested_mode == ixgbe_fc_default)
233 hw->fc.requested_mode = ixgbe_fc_full;
236 * Set up the 1G and 10G flow control advertisement registers so the
237 * HW will be able to do fc autoneg once the cable is plugged in. If
238 * we link at 10G, the 1G advertisement is harmless and vice versa.
240 switch (hw->phy.media_type) {
241 case ixgbe_media_type_backplane:
242 /* some MAC's need RMW protection on AUTOC */
243 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, ®_bp);
244 if (ret_val != IXGBE_SUCCESS)
247 /* only backplane uses autoc so fall though */
248 case ixgbe_media_type_fiber_qsfp:
249 case ixgbe_media_type_fiber:
250 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
253 case ixgbe_media_type_copper:
254 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT,
255 IXGBE_MDIO_AUTO_NEG_DEV_TYPE, ®_cu);
262 * The possible values of fc.requested_mode are:
263 * 0: Flow control is completely disabled
264 * 1: Rx flow control is enabled (we can receive pause frames,
265 * but not send pause frames).
266 * 2: Tx flow control is enabled (we can send pause frames but
267 * we do not support receiving pause frames).
268 * 3: Both Rx and Tx flow control (symmetric) are enabled.
271 switch (hw->fc.requested_mode) {
273 /* Flow control completely disabled by software override. */
274 reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
275 if (hw->phy.media_type == ixgbe_media_type_backplane)
276 reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE |
277 IXGBE_AUTOC_ASM_PAUSE);
278 else if (hw->phy.media_type == ixgbe_media_type_copper)
279 reg_cu &= ~(IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE);
281 case ixgbe_fc_tx_pause:
283 * Tx Flow control is enabled, and Rx Flow control is
284 * disabled by software override.
286 reg |= IXGBE_PCS1GANA_ASM_PAUSE;
287 reg &= ~IXGBE_PCS1GANA_SYM_PAUSE;
288 if (hw->phy.media_type == ixgbe_media_type_backplane) {
289 reg_bp |= IXGBE_AUTOC_ASM_PAUSE;
290 reg_bp &= ~IXGBE_AUTOC_SYM_PAUSE;
291 } else if (hw->phy.media_type == ixgbe_media_type_copper) {
292 reg_cu |= IXGBE_TAF_ASM_PAUSE;
293 reg_cu &= ~IXGBE_TAF_SYM_PAUSE;
296 case ixgbe_fc_rx_pause:
298 * Rx Flow control is enabled and Tx Flow control is
299 * disabled by software override. Since there really
300 * isn't a way to advertise that we are capable of RX
301 * Pause ONLY, we will advertise that we support both
302 * symmetric and asymmetric Rx PAUSE, as such we fall
303 * through to the fc_full statement. Later, we will
304 * disable the adapter's ability to send PAUSE frames.
307 /* Flow control (both Rx and Tx) is enabled by SW override. */
308 reg |= IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE;
309 if (hw->phy.media_type == ixgbe_media_type_backplane)
310 reg_bp |= IXGBE_AUTOC_SYM_PAUSE |
311 IXGBE_AUTOC_ASM_PAUSE;
312 else if (hw->phy.media_type == ixgbe_media_type_copper)
313 reg_cu |= IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE;
316 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT,
317 "Flow control param set incorrectly\n");
318 ret_val = IXGBE_ERR_CONFIG;
323 if (hw->mac.type < ixgbe_mac_X540) {
325 * Enable auto-negotiation between the MAC & PHY;
326 * the MAC will advertise clause 37 flow control.
328 IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg);
329 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
331 /* Disable AN timeout */
332 if (hw->fc.strict_ieee)
333 reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN;
335 IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg);
336 DEBUGOUT1("Set up FC; PCS1GLCTL = 0x%08X\n", reg);
340 * AUTOC restart handles negotiation of 1G and 10G on backplane
341 * and copper. There is no need to set the PCS1GCTL register.
344 if (hw->phy.media_type == ixgbe_media_type_backplane) {
345 reg_bp |= IXGBE_AUTOC_AN_RESTART;
346 ret_val = hw->mac.ops.prot_autoc_write(hw, reg_bp, locked);
349 } else if ((hw->phy.media_type == ixgbe_media_type_copper) &&
350 (ixgbe_device_supports_autoneg_fc(hw))) {
351 hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT,
352 IXGBE_MDIO_AUTO_NEG_DEV_TYPE, reg_cu);
355 DEBUGOUT1("Set up FC; PCS1GLCTL = 0x%08X\n", reg);
361 * ixgbe_start_hw_generic - Prepare hardware for Tx/Rx
362 * @hw: pointer to hardware structure
364 * Starts the hardware by filling the bus info structure and media type, clears
365 * all on chip counters, initializes receive address registers, multicast
366 * table, VLAN filter table, calls routine to set up link and flow control
367 * settings, and leaves transmit and receive units disabled and uninitialized
369 s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
374 DEBUGFUNC("ixgbe_start_hw_generic");
376 /* Set the media type */
377 hw->phy.media_type = hw->mac.ops.get_media_type(hw);
379 /* PHY ops initialization must be done in reset_hw() */
381 /* Clear the VLAN filter table */
382 hw->mac.ops.clear_vfta(hw);
384 /* Clear statistics registers */
385 hw->mac.ops.clear_hw_cntrs(hw);
387 /* Set No Snoop Disable */
388 ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
389 ctrl_ext |= IXGBE_CTRL_EXT_NS_DIS;
390 IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
391 IXGBE_WRITE_FLUSH(hw);
393 /* Setup flow control */
394 ret_val = ixgbe_setup_fc(hw);
395 if (ret_val != IXGBE_SUCCESS)
398 /* Clear adapter stopped flag */
399 hw->adapter_stopped = false;
406 * ixgbe_start_hw_gen2 - Init sequence for common device family
407 * @hw: pointer to hw structure
409 * Performs the init sequence common to the second generation
411 * Devices in the second generation:
415 s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw)
420 /* Clear the rate limiters */
421 for (i = 0; i < hw->mac.max_tx_queues; i++) {
422 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i);
423 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0);
425 IXGBE_WRITE_FLUSH(hw);
427 /* Disable relaxed ordering */
428 for (i = 0; i < hw->mac.max_tx_queues; i++) {
429 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i));
430 regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
431 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval);
434 for (i = 0; i < hw->mac.max_rx_queues; i++) {
435 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
436 regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
437 IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
438 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
441 return IXGBE_SUCCESS;
445 * ixgbe_init_hw_generic - Generic hardware initialization
446 * @hw: pointer to hardware structure
448 * Initialize the hardware by resetting the hardware, filling the bus info
449 * structure and media type, clears all on chip counters, initializes receive
450 * address registers, multicast table, VLAN filter table, calls routine to set
451 * up link and flow control settings, and leaves transmit and receive units
452 * disabled and uninitialized
454 s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw)
458 DEBUGFUNC("ixgbe_init_hw_generic");
460 /* Reset the hardware */
461 status = hw->mac.ops.reset_hw(hw);
463 if (status == IXGBE_SUCCESS) {
465 status = hw->mac.ops.start_hw(hw);
472 * ixgbe_clear_hw_cntrs_generic - Generic clear hardware counters
473 * @hw: pointer to hardware structure
475 * Clears all hardware statistics counters by reading them from the hardware
476 * Statistics counters are clear on read.
478 s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
482 DEBUGFUNC("ixgbe_clear_hw_cntrs_generic");
484 IXGBE_READ_REG(hw, IXGBE_CRCERRS);
485 IXGBE_READ_REG(hw, IXGBE_ILLERRC);
486 IXGBE_READ_REG(hw, IXGBE_ERRBC);
487 IXGBE_READ_REG(hw, IXGBE_MSPDC);
488 for (i = 0; i < 8; i++)
489 IXGBE_READ_REG(hw, IXGBE_MPC(i));
491 IXGBE_READ_REG(hw, IXGBE_MLFC);
492 IXGBE_READ_REG(hw, IXGBE_MRFC);
493 IXGBE_READ_REG(hw, IXGBE_RLEC);
494 IXGBE_READ_REG(hw, IXGBE_LXONTXC);
495 IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
496 if (hw->mac.type >= ixgbe_mac_82599EB) {
497 IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
498 IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
500 IXGBE_READ_REG(hw, IXGBE_LXONRXC);
501 IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
504 for (i = 0; i < 8; i++) {
505 IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
506 IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
507 if (hw->mac.type >= ixgbe_mac_82599EB) {
508 IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i));
509 IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i));
511 IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
512 IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
515 if (hw->mac.type >= ixgbe_mac_82599EB)
516 for (i = 0; i < 8; i++)
517 IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i));
518 IXGBE_READ_REG(hw, IXGBE_PRC64);
519 IXGBE_READ_REG(hw, IXGBE_PRC127);
520 IXGBE_READ_REG(hw, IXGBE_PRC255);
521 IXGBE_READ_REG(hw, IXGBE_PRC511);
522 IXGBE_READ_REG(hw, IXGBE_PRC1023);
523 IXGBE_READ_REG(hw, IXGBE_PRC1522);
524 IXGBE_READ_REG(hw, IXGBE_GPRC);
525 IXGBE_READ_REG(hw, IXGBE_BPRC);
526 IXGBE_READ_REG(hw, IXGBE_MPRC);
527 IXGBE_READ_REG(hw, IXGBE_GPTC);
528 IXGBE_READ_REG(hw, IXGBE_GORCL);
529 IXGBE_READ_REG(hw, IXGBE_GORCH);
530 IXGBE_READ_REG(hw, IXGBE_GOTCL);
531 IXGBE_READ_REG(hw, IXGBE_GOTCH);
532 if (hw->mac.type == ixgbe_mac_82598EB)
533 for (i = 0; i < 8; i++)
534 IXGBE_READ_REG(hw, IXGBE_RNBC(i));
535 IXGBE_READ_REG(hw, IXGBE_RUC);
536 IXGBE_READ_REG(hw, IXGBE_RFC);
537 IXGBE_READ_REG(hw, IXGBE_ROC);
538 IXGBE_READ_REG(hw, IXGBE_RJC);
539 IXGBE_READ_REG(hw, IXGBE_MNGPRC);
540 IXGBE_READ_REG(hw, IXGBE_MNGPDC);
541 IXGBE_READ_REG(hw, IXGBE_MNGPTC);
542 IXGBE_READ_REG(hw, IXGBE_TORL);
543 IXGBE_READ_REG(hw, IXGBE_TORH);
544 IXGBE_READ_REG(hw, IXGBE_TPR);
545 IXGBE_READ_REG(hw, IXGBE_TPT);
546 IXGBE_READ_REG(hw, IXGBE_PTC64);
547 IXGBE_READ_REG(hw, IXGBE_PTC127);
548 IXGBE_READ_REG(hw, IXGBE_PTC255);
549 IXGBE_READ_REG(hw, IXGBE_PTC511);
550 IXGBE_READ_REG(hw, IXGBE_PTC1023);
551 IXGBE_READ_REG(hw, IXGBE_PTC1522);
552 IXGBE_READ_REG(hw, IXGBE_MPTC);
553 IXGBE_READ_REG(hw, IXGBE_BPTC);
554 for (i = 0; i < 16; i++) {
555 IXGBE_READ_REG(hw, IXGBE_QPRC(i));
556 IXGBE_READ_REG(hw, IXGBE_QPTC(i));
557 if (hw->mac.type >= ixgbe_mac_82599EB) {
558 IXGBE_READ_REG(hw, IXGBE_QBRC_L(i));
559 IXGBE_READ_REG(hw, IXGBE_QBRC_H(i));
560 IXGBE_READ_REG(hw, IXGBE_QBTC_L(i));
561 IXGBE_READ_REG(hw, IXGBE_QBTC_H(i));
562 IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
564 IXGBE_READ_REG(hw, IXGBE_QBRC(i));
565 IXGBE_READ_REG(hw, IXGBE_QBTC(i));
569 if (hw->mac.type == ixgbe_mac_X550 || hw->mac.type == ixgbe_mac_X540) {
571 ixgbe_identify_phy(hw);
572 hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECL,
573 IXGBE_MDIO_PCS_DEV_TYPE, &i);
574 hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECH,
575 IXGBE_MDIO_PCS_DEV_TYPE, &i);
576 hw->phy.ops.read_reg(hw, IXGBE_LDPCECL,
577 IXGBE_MDIO_PCS_DEV_TYPE, &i);
578 hw->phy.ops.read_reg(hw, IXGBE_LDPCECH,
579 IXGBE_MDIO_PCS_DEV_TYPE, &i);
582 return IXGBE_SUCCESS;
586 * ixgbe_read_pba_string_generic - Reads part number string from EEPROM
587 * @hw: pointer to hardware structure
588 * @pba_num: stores the part number string from the EEPROM
589 * @pba_num_size: part number string buffer length
591 * Reads the part number string from the EEPROM.
593 s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
602 DEBUGFUNC("ixgbe_read_pba_string_generic");
604 if (pba_num == NULL) {
605 DEBUGOUT("PBA string buffer was null\n");
606 return IXGBE_ERR_INVALID_ARGUMENT;
609 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
611 DEBUGOUT("NVM Read Error\n");
615 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &pba_ptr);
617 DEBUGOUT("NVM Read Error\n");
622 * if data is not ptr guard the PBA must be in legacy format which
623 * means pba_ptr is actually our second data word for the PBA number
624 * and we can decode it into an ascii string
626 if (data != IXGBE_PBANUM_PTR_GUARD) {
627 DEBUGOUT("NVM PBA number is not stored as string\n");
629 /* we will need 11 characters to store the PBA */
630 if (pba_num_size < 11) {
631 DEBUGOUT("PBA string buffer too small\n");
632 return IXGBE_ERR_NO_SPACE;
635 /* extract hex string from data and pba_ptr */
636 pba_num[0] = (data >> 12) & 0xF;
637 pba_num[1] = (data >> 8) & 0xF;
638 pba_num[2] = (data >> 4) & 0xF;
639 pba_num[3] = data & 0xF;
640 pba_num[4] = (pba_ptr >> 12) & 0xF;
641 pba_num[5] = (pba_ptr >> 8) & 0xF;
644 pba_num[8] = (pba_ptr >> 4) & 0xF;
645 pba_num[9] = pba_ptr & 0xF;
647 /* put a null character on the end of our string */
650 /* switch all the data but the '-' to hex char */
651 for (offset = 0; offset < 10; offset++) {
652 if (pba_num[offset] < 0xA)
653 pba_num[offset] += '0';
654 else if (pba_num[offset] < 0x10)
655 pba_num[offset] += 'A' - 0xA;
658 return IXGBE_SUCCESS;
661 ret_val = hw->eeprom.ops.read(hw, pba_ptr, &length);
663 DEBUGOUT("NVM Read Error\n");
667 if (length == 0xFFFF || length == 0) {
668 DEBUGOUT("NVM PBA number section invalid length\n");
669 return IXGBE_ERR_PBA_SECTION;
672 /* check if pba_num buffer is big enough */
673 if (pba_num_size < (((u32)length * 2) - 1)) {
674 DEBUGOUT("PBA string buffer too small\n");
675 return IXGBE_ERR_NO_SPACE;
678 /* trim pba length from start of string */
682 for (offset = 0; offset < length; offset++) {
683 ret_val = hw->eeprom.ops.read(hw, pba_ptr + offset, &data);
685 DEBUGOUT("NVM Read Error\n");
688 pba_num[offset * 2] = (u8)(data >> 8);
689 pba_num[(offset * 2) + 1] = (u8)(data & 0xFF);
691 pba_num[offset * 2] = '\0';
693 return IXGBE_SUCCESS;
697 * ixgbe_read_pba_num_generic - Reads part number from EEPROM
698 * @hw: pointer to hardware structure
699 * @pba_num: stores the part number from the EEPROM
701 * Reads the part number from the EEPROM.
703 s32 ixgbe_read_pba_num_generic(struct ixgbe_hw *hw, u32 *pba_num)
708 DEBUGFUNC("ixgbe_read_pba_num_generic");
710 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
712 DEBUGOUT("NVM Read Error\n");
714 } else if (data == IXGBE_PBANUM_PTR_GUARD) {
715 DEBUGOUT("NVM Not supported\n");
716 return IXGBE_NOT_IMPLEMENTED;
718 *pba_num = (u32)(data << 16);
720 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &data);
722 DEBUGOUT("NVM Read Error\n");
727 return IXGBE_SUCCESS;
732 * @hw: pointer to the HW structure
733 * @eeprom_buf: optional pointer to EEPROM image
734 * @eeprom_buf_size: size of EEPROM image in words
735 * @max_pba_block_size: PBA block size limit
736 * @pba: pointer to output PBA structure
738 * Reads PBA from EEPROM image when eeprom_buf is not NULL.
739 * Reads PBA from physical EEPROM device when eeprom_buf is NULL.
742 s32 ixgbe_read_pba_raw(struct ixgbe_hw *hw, u16 *eeprom_buf,
743 u32 eeprom_buf_size, u16 max_pba_block_size,
744 struct ixgbe_pba *pba)
750 return IXGBE_ERR_PARAM;
752 if (eeprom_buf == NULL) {
753 ret_val = hw->eeprom.ops.read_buffer(hw, IXGBE_PBANUM0_PTR, 2,
758 if (eeprom_buf_size > IXGBE_PBANUM1_PTR) {
759 pba->word[0] = eeprom_buf[IXGBE_PBANUM0_PTR];
760 pba->word[1] = eeprom_buf[IXGBE_PBANUM1_PTR];
762 return IXGBE_ERR_PARAM;
766 if (pba->word[0] == IXGBE_PBANUM_PTR_GUARD) {
767 if (pba->pba_block == NULL)
768 return IXGBE_ERR_PARAM;
770 ret_val = ixgbe_get_pba_block_size(hw, eeprom_buf,
776 if (pba_block_size > max_pba_block_size)
777 return IXGBE_ERR_PARAM;
779 if (eeprom_buf == NULL) {
780 ret_val = hw->eeprom.ops.read_buffer(hw, pba->word[1],
786 if (eeprom_buf_size > (u32)(pba->word[1] +
788 memcpy(pba->pba_block,
789 &eeprom_buf[pba->word[1]],
790 pba_block_size * sizeof(u16));
792 return IXGBE_ERR_PARAM;
797 return IXGBE_SUCCESS;
801 * ixgbe_write_pba_raw
802 * @hw: pointer to the HW structure
803 * @eeprom_buf: optional pointer to EEPROM image
804 * @eeprom_buf_size: size of EEPROM image in words
805 * @pba: pointer to PBA structure
807 * Writes PBA to EEPROM image when eeprom_buf is not NULL.
808 * Writes PBA to physical EEPROM device when eeprom_buf is NULL.
811 s32 ixgbe_write_pba_raw(struct ixgbe_hw *hw, u16 *eeprom_buf,
812 u32 eeprom_buf_size, struct ixgbe_pba *pba)
817 return IXGBE_ERR_PARAM;
819 if (eeprom_buf == NULL) {
820 ret_val = hw->eeprom.ops.write_buffer(hw, IXGBE_PBANUM0_PTR, 2,
825 if (eeprom_buf_size > IXGBE_PBANUM1_PTR) {
826 eeprom_buf[IXGBE_PBANUM0_PTR] = pba->word[0];
827 eeprom_buf[IXGBE_PBANUM1_PTR] = pba->word[1];
829 return IXGBE_ERR_PARAM;
833 if (pba->word[0] == IXGBE_PBANUM_PTR_GUARD) {
834 if (pba->pba_block == NULL)
835 return IXGBE_ERR_PARAM;
837 if (eeprom_buf == NULL) {
838 ret_val = hw->eeprom.ops.write_buffer(hw, pba->word[1],
844 if (eeprom_buf_size > (u32)(pba->word[1] +
845 pba->pba_block[0])) {
846 memcpy(&eeprom_buf[pba->word[1]],
848 pba->pba_block[0] * sizeof(u16));
850 return IXGBE_ERR_PARAM;
855 return IXGBE_SUCCESS;
859 * ixgbe_get_pba_block_size
860 * @hw: pointer to the HW structure
861 * @eeprom_buf: optional pointer to EEPROM image
862 * @eeprom_buf_size: size of EEPROM image in words
863 * @pba_data_size: pointer to output variable
865 * Returns the size of the PBA block in words. Function operates on EEPROM
866 * image if the eeprom_buf pointer is not NULL otherwise it accesses physical
870 s32 ixgbe_get_pba_block_size(struct ixgbe_hw *hw, u16 *eeprom_buf,
871 u32 eeprom_buf_size, u16 *pba_block_size)
877 DEBUGFUNC("ixgbe_get_pba_block_size");
879 if (eeprom_buf == NULL) {
880 ret_val = hw->eeprom.ops.read_buffer(hw, IXGBE_PBANUM0_PTR, 2,
885 if (eeprom_buf_size > IXGBE_PBANUM1_PTR) {
886 pba_word[0] = eeprom_buf[IXGBE_PBANUM0_PTR];
887 pba_word[1] = eeprom_buf[IXGBE_PBANUM1_PTR];
889 return IXGBE_ERR_PARAM;
893 if (pba_word[0] == IXGBE_PBANUM_PTR_GUARD) {
894 if (eeprom_buf == NULL) {
895 ret_val = hw->eeprom.ops.read(hw, pba_word[1] + 0,
900 if (eeprom_buf_size > pba_word[1])
901 length = eeprom_buf[pba_word[1] + 0];
903 return IXGBE_ERR_PARAM;
906 if (length == 0xFFFF || length == 0)
907 return IXGBE_ERR_PBA_SECTION;
909 /* PBA number in legacy format, there is no PBA Block. */
913 if (pba_block_size != NULL)
914 *pba_block_size = length;
916 return IXGBE_SUCCESS;
920 * ixgbe_get_mac_addr_generic - Generic get MAC address
921 * @hw: pointer to hardware structure
922 * @mac_addr: Adapter MAC address
924 * Reads the adapter's MAC address from first Receive Address Register (RAR0)
925 * A reset of the adapter must be performed prior to calling this function
926 * in order for the MAC address to have been loaded from the EEPROM into RAR0
928 s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr)
934 DEBUGFUNC("ixgbe_get_mac_addr_generic");
936 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(0));
937 rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(0));
939 for (i = 0; i < 4; i++)
940 mac_addr[i] = (u8)(rar_low >> (i*8));
942 for (i = 0; i < 2; i++)
943 mac_addr[i+4] = (u8)(rar_high >> (i*8));
945 return IXGBE_SUCCESS;
949 * ixgbe_set_pci_config_data_generic - Generic store PCI bus info
950 * @hw: pointer to hardware structure
951 * @link_status: the link status returned by the PCI config space
953 * Stores the PCI bus info (speed, width, type) within the ixgbe_hw structure
955 void ixgbe_set_pci_config_data_generic(struct ixgbe_hw *hw, u16 link_status)
957 struct ixgbe_mac_info *mac = &hw->mac;
959 if (hw->bus.type == ixgbe_bus_type_unknown)
960 hw->bus.type = ixgbe_bus_type_pci_express;
962 switch (link_status & IXGBE_PCI_LINK_WIDTH) {
963 case IXGBE_PCI_LINK_WIDTH_1:
964 hw->bus.width = ixgbe_bus_width_pcie_x1;
966 case IXGBE_PCI_LINK_WIDTH_2:
967 hw->bus.width = ixgbe_bus_width_pcie_x2;
969 case IXGBE_PCI_LINK_WIDTH_4:
970 hw->bus.width = ixgbe_bus_width_pcie_x4;
972 case IXGBE_PCI_LINK_WIDTH_8:
973 hw->bus.width = ixgbe_bus_width_pcie_x8;
976 hw->bus.width = ixgbe_bus_width_unknown;
980 switch (link_status & IXGBE_PCI_LINK_SPEED) {
981 case IXGBE_PCI_LINK_SPEED_2500:
982 hw->bus.speed = ixgbe_bus_speed_2500;
984 case IXGBE_PCI_LINK_SPEED_5000:
985 hw->bus.speed = ixgbe_bus_speed_5000;
987 case IXGBE_PCI_LINK_SPEED_8000:
988 hw->bus.speed = ixgbe_bus_speed_8000;
991 hw->bus.speed = ixgbe_bus_speed_unknown;
995 mac->ops.set_lan_id(hw);
999 * ixgbe_get_bus_info_generic - Generic set PCI bus info
1000 * @hw: pointer to hardware structure
1002 * Gets the PCI bus info (speed, width, type) then calls helper function to
1003 * store this data within the ixgbe_hw structure.
1005 s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw)
1009 DEBUGFUNC("ixgbe_get_bus_info_generic");
1011 /* Get the negotiated link width and speed from PCI config space */
1012 link_status = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_LINK_STATUS);
1014 ixgbe_set_pci_config_data_generic(hw, link_status);
1016 return IXGBE_SUCCESS;
1020 * ixgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
1021 * @hw: pointer to the HW structure
1023 * Determines the LAN function id by reading memory-mapped registers and swaps
1024 * the port value if requested, and set MAC instance for devices that share
1027 void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw)
1029 struct ixgbe_bus_info *bus = &hw->bus;
1033 DEBUGFUNC("ixgbe_set_lan_id_multi_port_pcie");
1035 reg = IXGBE_READ_REG(hw, IXGBE_STATUS);
1036 bus->func = (reg & IXGBE_STATUS_LAN_ID) >> IXGBE_STATUS_LAN_ID_SHIFT;
1037 bus->lan_id = (u8)bus->func;
1039 /* check for a port swap */
1040 reg = IXGBE_READ_REG(hw, IXGBE_FACTPS_BY_MAC(hw));
1041 if (reg & IXGBE_FACTPS_LFS)
1044 /* Get MAC instance from EEPROM for configuring CS4227 */
1045 if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SFP) {
1046 hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_4, &ee_ctrl_4);
1047 bus->instance_id = (ee_ctrl_4 & IXGBE_EE_CTRL_4_INST_ID) >>
1048 IXGBE_EE_CTRL_4_INST_ID_SHIFT;
1053 * ixgbe_stop_adapter_generic - Generic stop Tx/Rx units
1054 * @hw: pointer to hardware structure
1056 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
1057 * disables transmit and receive units. The adapter_stopped flag is used by
1058 * the shared code and drivers to determine if the adapter is in a stopped
1059 * state and should not touch the hardware.
1061 s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw)
1066 DEBUGFUNC("ixgbe_stop_adapter_generic");
1069 * Set the adapter_stopped flag so other driver functions stop touching
1072 hw->adapter_stopped = true;
1074 /* Disable the receive unit */
1075 ixgbe_disable_rx(hw);
1077 /* Clear interrupt mask to stop interrupts from being generated */
1078 IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK);
1080 /* Clear any pending interrupts, flush previous writes */
1081 IXGBE_READ_REG(hw, IXGBE_EICR);
1083 /* Disable the transmit unit. Each queue must be disabled. */
1084 for (i = 0; i < hw->mac.max_tx_queues; i++)
1085 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(i), IXGBE_TXDCTL_SWFLSH);
1087 /* Disable the receive unit by stopping each queue */
1088 for (i = 0; i < hw->mac.max_rx_queues; i++) {
1089 reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
1090 reg_val &= ~IXGBE_RXDCTL_ENABLE;
1091 reg_val |= IXGBE_RXDCTL_SWFLSH;
1092 IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val);
1095 /* flush all queues disables */
1096 IXGBE_WRITE_FLUSH(hw);
1100 * Prevent the PCI-E bus from hanging by disabling PCI-E master
1101 * access and verify no pending requests
1103 return ixgbe_disable_pcie_master(hw);
1107 * ixgbe_led_on_generic - Turns on the software controllable LEDs.
1108 * @hw: pointer to hardware structure
1109 * @index: led number to turn on
1111 s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
1113 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
1115 DEBUGFUNC("ixgbe_led_on_generic");
1117 /* To turn on the LED, set mode to ON. */
1118 led_reg &= ~IXGBE_LED_MODE_MASK(index);
1119 led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index);
1120 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
1121 IXGBE_WRITE_FLUSH(hw);
1123 return IXGBE_SUCCESS;
1127 * ixgbe_led_off_generic - Turns off the software controllable LEDs.
1128 * @hw: pointer to hardware structure
1129 * @index: led number to turn off
1131 s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
1133 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
1135 DEBUGFUNC("ixgbe_led_off_generic");
1137 /* To turn off the LED, set mode to OFF. */
1138 led_reg &= ~IXGBE_LED_MODE_MASK(index);
1139 led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index);
1140 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
1141 IXGBE_WRITE_FLUSH(hw);
1143 return IXGBE_SUCCESS;
1147 * ixgbe_init_eeprom_params_generic - Initialize EEPROM params
1148 * @hw: pointer to hardware structure
1150 * Initializes the EEPROM parameters ixgbe_eeprom_info within the
1151 * ixgbe_hw struct in order to set up EEPROM access.
1153 s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw)
1155 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
1159 DEBUGFUNC("ixgbe_init_eeprom_params_generic");
1161 if (eeprom->type == ixgbe_eeprom_uninitialized) {
1162 eeprom->type = ixgbe_eeprom_none;
1163 /* Set default semaphore delay to 10ms which is a well
1165 eeprom->semaphore_delay = 10;
1166 /* Clear EEPROM page size, it will be initialized as needed */
1167 eeprom->word_page_size = 0;
1170 * Check for EEPROM present first.
1171 * If not present leave as none
1173 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
1174 if (eec & IXGBE_EEC_PRES) {
1175 eeprom->type = ixgbe_eeprom_spi;
1178 * SPI EEPROM is assumed here. This code would need to
1179 * change if a future EEPROM is not SPI.
1181 eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >>
1182 IXGBE_EEC_SIZE_SHIFT);
1183 eeprom->word_size = 1 << (eeprom_size +
1184 IXGBE_EEPROM_WORD_SIZE_SHIFT);
1187 if (eec & IXGBE_EEC_ADDR_SIZE)
1188 eeprom->address_bits = 16;
1190 eeprom->address_bits = 8;
1191 DEBUGOUT3("Eeprom params: type = %d, size = %d, address bits: "
1192 "%d\n", eeprom->type, eeprom->word_size,
1193 eeprom->address_bits);
1196 return IXGBE_SUCCESS;
1200 * ixgbe_write_eeprom_buffer_bit_bang_generic - Write EEPROM using bit-bang
1201 * @hw: pointer to hardware structure
1202 * @offset: offset within the EEPROM to write
1203 * @words: number of word(s)
1204 * @data: 16 bit word(s) to write to EEPROM
1206 * Reads 16 bit word(s) from EEPROM through bit-bang method
1208 s32 ixgbe_write_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1209 u16 words, u16 *data)
1211 s32 status = IXGBE_SUCCESS;
1214 DEBUGFUNC("ixgbe_write_eeprom_buffer_bit_bang_generic");
1216 hw->eeprom.ops.init_params(hw);
1219 status = IXGBE_ERR_INVALID_ARGUMENT;
1223 if (offset + words > hw->eeprom.word_size) {
1224 status = IXGBE_ERR_EEPROM;
1229 * The EEPROM page size cannot be queried from the chip. We do lazy
1230 * initialization. It is worth to do that when we write large buffer.
1232 if ((hw->eeprom.word_page_size == 0) &&
1233 (words > IXGBE_EEPROM_PAGE_SIZE_MAX))
1234 ixgbe_detect_eeprom_page_size_generic(hw, offset);
1237 * We cannot hold synchronization semaphores for too long
1238 * to avoid other entity starvation. However it is more efficient
1239 * to read in bursts than synchronizing access for each word.
1241 for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) {
1242 count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ?
1243 IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i);
1244 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset + i,
1247 if (status != IXGBE_SUCCESS)
1256 * ixgbe_write_eeprom_buffer_bit_bang - Writes 16 bit word(s) to EEPROM
1257 * @hw: pointer to hardware structure
1258 * @offset: offset within the EEPROM to be written to
1259 * @words: number of word(s)
1260 * @data: 16 bit word(s) to be written to the EEPROM
1262 * If ixgbe_eeprom_update_checksum is not called after this function, the
1263 * EEPROM will most likely contain an invalid checksum.
1265 STATIC s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
1266 u16 words, u16 *data)
1272 u8 write_opcode = IXGBE_EEPROM_WRITE_OPCODE_SPI;
1274 DEBUGFUNC("ixgbe_write_eeprom_buffer_bit_bang");
1276 /* Prepare the EEPROM for writing */
1277 status = ixgbe_acquire_eeprom(hw);
1279 if (status == IXGBE_SUCCESS) {
1280 if (ixgbe_ready_eeprom(hw) != IXGBE_SUCCESS) {
1281 ixgbe_release_eeprom(hw);
1282 status = IXGBE_ERR_EEPROM;
1286 if (status == IXGBE_SUCCESS) {
1287 for (i = 0; i < words; i++) {
1288 ixgbe_standby_eeprom(hw);
1290 /* Send the WRITE ENABLE command (8 bit opcode ) */
1291 ixgbe_shift_out_eeprom_bits(hw,
1292 IXGBE_EEPROM_WREN_OPCODE_SPI,
1293 IXGBE_EEPROM_OPCODE_BITS);
1295 ixgbe_standby_eeprom(hw);
1298 * Some SPI eeproms use the 8th address bit embedded
1301 if ((hw->eeprom.address_bits == 8) &&
1302 ((offset + i) >= 128))
1303 write_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
1305 /* Send the Write command (8-bit opcode + addr) */
1306 ixgbe_shift_out_eeprom_bits(hw, write_opcode,
1307 IXGBE_EEPROM_OPCODE_BITS);
1308 ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2),
1309 hw->eeprom.address_bits);
1311 page_size = hw->eeprom.word_page_size;
1313 /* Send the data in burst via SPI*/
1316 word = (word >> 8) | (word << 8);
1317 ixgbe_shift_out_eeprom_bits(hw, word, 16);
1322 /* do not wrap around page */
1323 if (((offset + i) & (page_size - 1)) ==
1326 } while (++i < words);
1328 ixgbe_standby_eeprom(hw);
1331 /* Done with writing - release the EEPROM */
1332 ixgbe_release_eeprom(hw);
1339 * ixgbe_write_eeprom_generic - Writes 16 bit value to EEPROM
1340 * @hw: pointer to hardware structure
1341 * @offset: offset within the EEPROM to be written to
1342 * @data: 16 bit word to be written to the EEPROM
1344 * If ixgbe_eeprom_update_checksum is not called after this function, the
1345 * EEPROM will most likely contain an invalid checksum.
1347 s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
1351 DEBUGFUNC("ixgbe_write_eeprom_generic");
1353 hw->eeprom.ops.init_params(hw);
1355 if (offset >= hw->eeprom.word_size) {
1356 status = IXGBE_ERR_EEPROM;
1360 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset, 1, &data);
1367 * ixgbe_read_eeprom_buffer_bit_bang_generic - Read EEPROM using bit-bang
1368 * @hw: pointer to hardware structure
1369 * @offset: offset within the EEPROM to be read
1370 * @data: read 16 bit words(s) from EEPROM
1371 * @words: number of word(s)
1373 * Reads 16 bit word(s) from EEPROM through bit-bang method
1375 s32 ixgbe_read_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1376 u16 words, u16 *data)
1378 s32 status = IXGBE_SUCCESS;
1381 DEBUGFUNC("ixgbe_read_eeprom_buffer_bit_bang_generic");
1383 hw->eeprom.ops.init_params(hw);
1386 status = IXGBE_ERR_INVALID_ARGUMENT;
1390 if (offset + words > hw->eeprom.word_size) {
1391 status = IXGBE_ERR_EEPROM;
1396 * We cannot hold synchronization semaphores for too long
1397 * to avoid other entity starvation. However it is more efficient
1398 * to read in bursts than synchronizing access for each word.
1400 for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) {
1401 count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ?
1402 IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i);
1404 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset + i,
1407 if (status != IXGBE_SUCCESS)
1416 * ixgbe_read_eeprom_buffer_bit_bang - Read EEPROM using bit-bang
1417 * @hw: pointer to hardware structure
1418 * @offset: offset within the EEPROM to be read
1419 * @words: number of word(s)
1420 * @data: read 16 bit word(s) from EEPROM
1422 * Reads 16 bit word(s) from EEPROM through bit-bang method
1424 STATIC s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
1425 u16 words, u16 *data)
1429 u8 read_opcode = IXGBE_EEPROM_READ_OPCODE_SPI;
1432 DEBUGFUNC("ixgbe_read_eeprom_buffer_bit_bang");
1434 /* Prepare the EEPROM for reading */
1435 status = ixgbe_acquire_eeprom(hw);
1437 if (status == IXGBE_SUCCESS) {
1438 if (ixgbe_ready_eeprom(hw) != IXGBE_SUCCESS) {
1439 ixgbe_release_eeprom(hw);
1440 status = IXGBE_ERR_EEPROM;
1444 if (status == IXGBE_SUCCESS) {
1445 for (i = 0; i < words; i++) {
1446 ixgbe_standby_eeprom(hw);
1448 * Some SPI eeproms use the 8th address bit embedded
1451 if ((hw->eeprom.address_bits == 8) &&
1452 ((offset + i) >= 128))
1453 read_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
1455 /* Send the READ command (opcode + addr) */
1456 ixgbe_shift_out_eeprom_bits(hw, read_opcode,
1457 IXGBE_EEPROM_OPCODE_BITS);
1458 ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2),
1459 hw->eeprom.address_bits);
1461 /* Read the data. */
1462 word_in = ixgbe_shift_in_eeprom_bits(hw, 16);
1463 data[i] = (word_in >> 8) | (word_in << 8);
1466 /* End this read operation */
1467 ixgbe_release_eeprom(hw);
1474 * ixgbe_read_eeprom_bit_bang_generic - Read EEPROM word using bit-bang
1475 * @hw: pointer to hardware structure
1476 * @offset: offset within the EEPROM to be read
1477 * @data: read 16 bit value from EEPROM
1479 * Reads 16 bit value from EEPROM through bit-bang method
1481 s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1486 DEBUGFUNC("ixgbe_read_eeprom_bit_bang_generic");
1488 hw->eeprom.ops.init_params(hw);
1490 if (offset >= hw->eeprom.word_size) {
1491 status = IXGBE_ERR_EEPROM;
1495 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
1502 * ixgbe_read_eerd_buffer_generic - Read EEPROM word(s) using EERD
1503 * @hw: pointer to hardware structure
1504 * @offset: offset of word in the EEPROM to read
1505 * @words: number of word(s)
1506 * @data: 16 bit word(s) from the EEPROM
1508 * Reads a 16 bit word(s) from the EEPROM using the EERD register.
1510 s32 ixgbe_read_eerd_buffer_generic(struct ixgbe_hw *hw, u16 offset,
1511 u16 words, u16 *data)
1514 s32 status = IXGBE_SUCCESS;
1517 DEBUGFUNC("ixgbe_read_eerd_buffer_generic");
1519 hw->eeprom.ops.init_params(hw);
1522 status = IXGBE_ERR_INVALID_ARGUMENT;
1523 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM words");
1527 if (offset >= hw->eeprom.word_size) {
1528 status = IXGBE_ERR_EEPROM;
1529 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM offset");
1533 for (i = 0; i < words; i++) {
1534 eerd = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
1535 IXGBE_EEPROM_RW_REG_START;
1537 IXGBE_WRITE_REG(hw, IXGBE_EERD, eerd);
1538 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_READ);
1540 if (status == IXGBE_SUCCESS) {
1541 data[i] = (IXGBE_READ_REG(hw, IXGBE_EERD) >>
1542 IXGBE_EEPROM_RW_REG_DATA);
1544 DEBUGOUT("Eeprom read timed out\n");
1553 * ixgbe_detect_eeprom_page_size_generic - Detect EEPROM page size
1554 * @hw: pointer to hardware structure
1555 * @offset: offset within the EEPROM to be used as a scratch pad
1557 * Discover EEPROM page size by writing marching data at given offset.
1558 * This function is called only when we are writing a new large buffer
1559 * at given offset so the data would be overwritten anyway.
1561 STATIC s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw,
1564 u16 data[IXGBE_EEPROM_PAGE_SIZE_MAX];
1565 s32 status = IXGBE_SUCCESS;
1568 DEBUGFUNC("ixgbe_detect_eeprom_page_size_generic");
1570 for (i = 0; i < IXGBE_EEPROM_PAGE_SIZE_MAX; i++)
1573 hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX;
1574 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset,
1575 IXGBE_EEPROM_PAGE_SIZE_MAX, data);
1576 hw->eeprom.word_page_size = 0;
1577 if (status != IXGBE_SUCCESS)
1580 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
1581 if (status != IXGBE_SUCCESS)
1585 * When writing in burst more than the actual page size
1586 * EEPROM address wraps around current page.
1588 hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX - data[0];
1590 DEBUGOUT1("Detected EEPROM page size = %d words.",
1591 hw->eeprom.word_page_size);
1597 * ixgbe_read_eerd_generic - Read EEPROM word using EERD
1598 * @hw: pointer to hardware structure
1599 * @offset: offset of word in the EEPROM to read
1600 * @data: word read from the EEPROM
1602 * Reads a 16 bit word from the EEPROM using the EERD register.
1604 s32 ixgbe_read_eerd_generic(struct ixgbe_hw *hw, u16 offset, u16 *data)
1606 return ixgbe_read_eerd_buffer_generic(hw, offset, 1, data);
1610 * ixgbe_write_eewr_buffer_generic - Write EEPROM word(s) using EEWR
1611 * @hw: pointer to hardware structure
1612 * @offset: offset of word in the EEPROM to write
1613 * @words: number of word(s)
1614 * @data: word(s) write to the EEPROM
1616 * Write a 16 bit word(s) to the EEPROM using the EEWR register.
1618 s32 ixgbe_write_eewr_buffer_generic(struct ixgbe_hw *hw, u16 offset,
1619 u16 words, u16 *data)
1622 s32 status = IXGBE_SUCCESS;
1625 DEBUGFUNC("ixgbe_write_eewr_generic");
1627 hw->eeprom.ops.init_params(hw);
1630 status = IXGBE_ERR_INVALID_ARGUMENT;
1631 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM words");
1635 if (offset >= hw->eeprom.word_size) {
1636 status = IXGBE_ERR_EEPROM;
1637 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM offset");
1641 for (i = 0; i < words; i++) {
1642 eewr = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
1643 (data[i] << IXGBE_EEPROM_RW_REG_DATA) |
1644 IXGBE_EEPROM_RW_REG_START;
1646 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE);
1647 if (status != IXGBE_SUCCESS) {
1648 DEBUGOUT("Eeprom write EEWR timed out\n");
1652 IXGBE_WRITE_REG(hw, IXGBE_EEWR, eewr);
1654 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE);
1655 if (status != IXGBE_SUCCESS) {
1656 DEBUGOUT("Eeprom write EEWR timed out\n");
1666 * ixgbe_write_eewr_generic - Write EEPROM word using EEWR
1667 * @hw: pointer to hardware structure
1668 * @offset: offset of word in the EEPROM to write
1669 * @data: word write to the EEPROM
1671 * Write a 16 bit word to the EEPROM using the EEWR register.
1673 s32 ixgbe_write_eewr_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
1675 return ixgbe_write_eewr_buffer_generic(hw, offset, 1, &data);
1679 * ixgbe_poll_eerd_eewr_done - Poll EERD read or EEWR write status
1680 * @hw: pointer to hardware structure
1681 * @ee_reg: EEPROM flag for polling
1683 * Polls the status bit (bit 1) of the EERD or EEWR to determine when the
1684 * read or write is done respectively.
1686 s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
1690 s32 status = IXGBE_ERR_EEPROM;
1692 DEBUGFUNC("ixgbe_poll_eerd_eewr_done");
1694 for (i = 0; i < IXGBE_EERD_EEWR_ATTEMPTS; i++) {
1695 if (ee_reg == IXGBE_NVM_POLL_READ)
1696 reg = IXGBE_READ_REG(hw, IXGBE_EERD);
1698 reg = IXGBE_READ_REG(hw, IXGBE_EEWR);
1700 if (reg & IXGBE_EEPROM_RW_REG_DONE) {
1701 status = IXGBE_SUCCESS;
1707 if (i == IXGBE_EERD_EEWR_ATTEMPTS)
1708 ERROR_REPORT1(IXGBE_ERROR_POLLING,
1709 "EEPROM read/write done polling timed out");
1715 * ixgbe_acquire_eeprom - Acquire EEPROM using bit-bang
1716 * @hw: pointer to hardware structure
1718 * Prepares EEPROM for access using bit-bang method. This function should
1719 * be called before issuing a command to the EEPROM.
1721 STATIC s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
1723 s32 status = IXGBE_SUCCESS;
1727 DEBUGFUNC("ixgbe_acquire_eeprom");
1729 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)
1731 status = IXGBE_ERR_SWFW_SYNC;
1733 if (status == IXGBE_SUCCESS) {
1734 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
1736 /* Request EEPROM Access */
1737 eec |= IXGBE_EEC_REQ;
1738 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
1740 for (i = 0; i < IXGBE_EEPROM_GRANT_ATTEMPTS; i++) {
1741 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
1742 if (eec & IXGBE_EEC_GNT)
1747 /* Release if grant not acquired */
1748 if (!(eec & IXGBE_EEC_GNT)) {
1749 eec &= ~IXGBE_EEC_REQ;
1750 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
1751 DEBUGOUT("Could not acquire EEPROM grant\n");
1753 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1754 status = IXGBE_ERR_EEPROM;
1757 /* Setup EEPROM for Read/Write */
1758 if (status == IXGBE_SUCCESS) {
1759 /* Clear CS and SK */
1760 eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
1761 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
1762 IXGBE_WRITE_FLUSH(hw);
1770 * ixgbe_get_eeprom_semaphore - Get hardware semaphore
1771 * @hw: pointer to hardware structure
1773 * Sets the hardware semaphores so EEPROM access can occur for bit-bang method
1775 STATIC s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
1777 s32 status = IXGBE_ERR_EEPROM;
1782 DEBUGFUNC("ixgbe_get_eeprom_semaphore");
1785 /* Get SMBI software semaphore between device drivers first */
1786 for (i = 0; i < timeout; i++) {
1788 * If the SMBI bit is 0 when we read it, then the bit will be
1789 * set and we have the semaphore
1791 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM_BY_MAC(hw));
1792 if (!(swsm & IXGBE_SWSM_SMBI)) {
1793 status = IXGBE_SUCCESS;
1800 DEBUGOUT("Driver can't access the Eeprom - SMBI Semaphore "
1803 * this release is particularly important because our attempts
1804 * above to get the semaphore may have succeeded, and if there
1805 * was a timeout, we should unconditionally clear the semaphore
1806 * bits to free the driver to make progress
1808 ixgbe_release_eeprom_semaphore(hw);
1813 * If the SMBI bit is 0 when we read it, then the bit will be
1814 * set and we have the semaphore
1816 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM_BY_MAC(hw));
1817 if (!(swsm & IXGBE_SWSM_SMBI))
1818 status = IXGBE_SUCCESS;
1821 /* Now get the semaphore between SW/FW through the SWESMBI bit */
1822 if (status == IXGBE_SUCCESS) {
1823 for (i = 0; i < timeout; i++) {
1824 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM_BY_MAC(hw));
1826 /* Set the SW EEPROM semaphore bit to request access */
1827 swsm |= IXGBE_SWSM_SWESMBI;
1828 IXGBE_WRITE_REG(hw, IXGBE_SWSM_BY_MAC(hw), swsm);
1831 * If we set the bit successfully then we got the
1834 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM_BY_MAC(hw));
1835 if (swsm & IXGBE_SWSM_SWESMBI)
1842 * Release semaphores and return error if SW EEPROM semaphore
1843 * was not granted because we don't have access to the EEPROM
1846 ERROR_REPORT1(IXGBE_ERROR_POLLING,
1847 "SWESMBI Software EEPROM semaphore not granted.\n");
1848 ixgbe_release_eeprom_semaphore(hw);
1849 status = IXGBE_ERR_EEPROM;
1852 ERROR_REPORT1(IXGBE_ERROR_POLLING,
1853 "Software semaphore SMBI between device drivers "
1861 * ixgbe_release_eeprom_semaphore - Release hardware semaphore
1862 * @hw: pointer to hardware structure
1864 * This function clears hardware semaphore bits.
1866 STATIC void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw)
1870 DEBUGFUNC("ixgbe_release_eeprom_semaphore");
1872 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
1874 /* Release both semaphores by writing 0 to the bits SWESMBI and SMBI */
1875 swsm &= ~(IXGBE_SWSM_SWESMBI | IXGBE_SWSM_SMBI);
1876 IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm);
1877 IXGBE_WRITE_FLUSH(hw);
1881 * ixgbe_ready_eeprom - Polls for EEPROM ready
1882 * @hw: pointer to hardware structure
1884 STATIC s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw)
1886 s32 status = IXGBE_SUCCESS;
1890 DEBUGFUNC("ixgbe_ready_eeprom");
1893 * Read "Status Register" repeatedly until the LSB is cleared. The
1894 * EEPROM will signal that the command has been completed by clearing
1895 * bit 0 of the internal status register. If it's not cleared within
1896 * 5 milliseconds, then error out.
1898 for (i = 0; i < IXGBE_EEPROM_MAX_RETRY_SPI; i += 5) {
1899 ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_RDSR_OPCODE_SPI,
1900 IXGBE_EEPROM_OPCODE_BITS);
1901 spi_stat_reg = (u8)ixgbe_shift_in_eeprom_bits(hw, 8);
1902 if (!(spi_stat_reg & IXGBE_EEPROM_STATUS_RDY_SPI))
1906 ixgbe_standby_eeprom(hw);
1910 * On some parts, SPI write time could vary from 0-20mSec on 3.3V
1911 * devices (and only 0-5mSec on 5V devices)
1913 if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) {
1914 DEBUGOUT("SPI EEPROM Status error\n");
1915 status = IXGBE_ERR_EEPROM;
1922 * ixgbe_standby_eeprom - Returns EEPROM to a "standby" state
1923 * @hw: pointer to hardware structure
1925 STATIC void ixgbe_standby_eeprom(struct ixgbe_hw *hw)
1929 DEBUGFUNC("ixgbe_standby_eeprom");
1931 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
1933 /* Toggle CS to flush commands */
1934 eec |= IXGBE_EEC_CS;
1935 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
1936 IXGBE_WRITE_FLUSH(hw);
1938 eec &= ~IXGBE_EEC_CS;
1939 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
1940 IXGBE_WRITE_FLUSH(hw);
1945 * ixgbe_shift_out_eeprom_bits - Shift data bits out to the EEPROM.
1946 * @hw: pointer to hardware structure
1947 * @data: data to send to the EEPROM
1948 * @count: number of bits to shift out
1950 STATIC void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
1957 DEBUGFUNC("ixgbe_shift_out_eeprom_bits");
1959 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
1962 * Mask is used to shift "count" bits of "data" out to the EEPROM
1963 * one bit at a time. Determine the starting bit based on count
1965 mask = 0x01 << (count - 1);
1967 for (i = 0; i < count; i++) {
1969 * A "1" is shifted out to the EEPROM by setting bit "DI" to a
1970 * "1", and then raising and then lowering the clock (the SK
1971 * bit controls the clock input to the EEPROM). A "0" is
1972 * shifted out to the EEPROM by setting "DI" to "0" and then
1973 * raising and then lowering the clock.
1976 eec |= IXGBE_EEC_DI;
1978 eec &= ~IXGBE_EEC_DI;
1980 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
1981 IXGBE_WRITE_FLUSH(hw);
1985 ixgbe_raise_eeprom_clk(hw, &eec);
1986 ixgbe_lower_eeprom_clk(hw, &eec);
1989 * Shift mask to signify next bit of data to shift in to the
1995 /* We leave the "DI" bit set to "0" when we leave this routine. */
1996 eec &= ~IXGBE_EEC_DI;
1997 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
1998 IXGBE_WRITE_FLUSH(hw);
2002 * ixgbe_shift_in_eeprom_bits - Shift data bits in from the EEPROM
2003 * @hw: pointer to hardware structure
2005 STATIC u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count)
2011 DEBUGFUNC("ixgbe_shift_in_eeprom_bits");
2014 * In order to read a register from the EEPROM, we need to shift
2015 * 'count' bits in from the EEPROM. Bits are "shifted in" by raising
2016 * the clock input to the EEPROM (setting the SK bit), and then reading
2017 * the value of the "DO" bit. During this "shifting in" process the
2018 * "DI" bit should always be clear.
2020 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
2022 eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI);
2024 for (i = 0; i < count; i++) {
2026 ixgbe_raise_eeprom_clk(hw, &eec);
2028 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
2030 eec &= ~(IXGBE_EEC_DI);
2031 if (eec & IXGBE_EEC_DO)
2034 ixgbe_lower_eeprom_clk(hw, &eec);
2041 * ixgbe_raise_eeprom_clk - Raises the EEPROM's clock input.
2042 * @hw: pointer to hardware structure
2043 * @eec: EEC register's current value
2045 STATIC void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
2047 DEBUGFUNC("ixgbe_raise_eeprom_clk");
2050 * Raise the clock input to the EEPROM
2051 * (setting the SK bit), then delay
2053 *eec = *eec | IXGBE_EEC_SK;
2054 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), *eec);
2055 IXGBE_WRITE_FLUSH(hw);
2060 * ixgbe_lower_eeprom_clk - Lowers the EEPROM's clock input.
2061 * @hw: pointer to hardware structure
2062 * @eecd: EECD's current value
2064 STATIC void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
2066 DEBUGFUNC("ixgbe_lower_eeprom_clk");
2069 * Lower the clock input to the EEPROM (clearing the SK bit), then
2072 *eec = *eec & ~IXGBE_EEC_SK;
2073 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), *eec);
2074 IXGBE_WRITE_FLUSH(hw);
2079 * ixgbe_release_eeprom - Release EEPROM, release semaphores
2080 * @hw: pointer to hardware structure
2082 STATIC void ixgbe_release_eeprom(struct ixgbe_hw *hw)
2086 DEBUGFUNC("ixgbe_release_eeprom");
2088 eec = IXGBE_READ_REG(hw, IXGBE_EEC_BY_MAC(hw));
2090 eec |= IXGBE_EEC_CS; /* Pull CS high */
2091 eec &= ~IXGBE_EEC_SK; /* Lower SCK */
2093 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
2094 IXGBE_WRITE_FLUSH(hw);
2098 /* Stop requesting EEPROM access */
2099 eec &= ~IXGBE_EEC_REQ;
2100 IXGBE_WRITE_REG(hw, IXGBE_EEC_BY_MAC(hw), eec);
2102 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
2104 /* Delay before attempt to obtain semaphore again to allow FW access */
2105 msec_delay(hw->eeprom.semaphore_delay);
2109 * ixgbe_calc_eeprom_checksum_generic - Calculates and returns the checksum
2110 * @hw: pointer to hardware structure
2112 * Returns a negative error code on error, or the 16-bit checksum
2114 s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
2123 DEBUGFUNC("ixgbe_calc_eeprom_checksum_generic");
2125 /* Include 0x0-0x3F in the checksum */
2126 for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) {
2127 if (hw->eeprom.ops.read(hw, i, &word)) {
2128 DEBUGOUT("EEPROM read failed\n");
2129 return IXGBE_ERR_EEPROM;
2134 /* Include all data from pointers except for the fw pointer */
2135 for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
2136 if (hw->eeprom.ops.read(hw, i, &pointer)) {
2137 DEBUGOUT("EEPROM read failed\n");
2138 return IXGBE_ERR_EEPROM;
2141 /* If the pointer seems invalid */
2142 if (pointer == 0xFFFF || pointer == 0)
2145 if (hw->eeprom.ops.read(hw, pointer, &length)) {
2146 DEBUGOUT("EEPROM read failed\n");
2147 return IXGBE_ERR_EEPROM;
2150 if (length == 0xFFFF || length == 0)
2153 for (j = pointer + 1; j <= pointer + length; j++) {
2154 if (hw->eeprom.ops.read(hw, j, &word)) {
2155 DEBUGOUT("EEPROM read failed\n");
2156 return IXGBE_ERR_EEPROM;
2162 checksum = (u16)IXGBE_EEPROM_SUM - checksum;
2164 return (s32)checksum;
2168 * ixgbe_validate_eeprom_checksum_generic - Validate EEPROM checksum
2169 * @hw: pointer to hardware structure
2170 * @checksum_val: calculated checksum
2172 * Performs checksum calculation and validates the EEPROM checksum. If the
2173 * caller does not need checksum_val, the value can be NULL.
2175 s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
2180 u16 read_checksum = 0;
2182 DEBUGFUNC("ixgbe_validate_eeprom_checksum_generic");
2184 /* Read the first word from the EEPROM. If this times out or fails, do
2185 * not continue or we could be in for a very long wait while every
2188 status = hw->eeprom.ops.read(hw, 0, &checksum);
2190 DEBUGOUT("EEPROM read failed\n");
2194 status = hw->eeprom.ops.calc_checksum(hw);
2198 checksum = (u16)(status & 0xffff);
2200 status = hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum);
2202 DEBUGOUT("EEPROM read failed\n");
2206 /* Verify read checksum from EEPROM is the same as
2207 * calculated checksum
2209 if (read_checksum != checksum)
2210 status = IXGBE_ERR_EEPROM_CHECKSUM;
2212 /* If the user cares, return the calculated checksum */
2214 *checksum_val = checksum;
2220 * ixgbe_update_eeprom_checksum_generic - Updates the EEPROM checksum
2221 * @hw: pointer to hardware structure
2223 s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw)
2228 DEBUGFUNC("ixgbe_update_eeprom_checksum_generic");
2230 /* Read the first word from the EEPROM. If this times out or fails, do
2231 * not continue or we could be in for a very long wait while every
2234 status = hw->eeprom.ops.read(hw, 0, &checksum);
2236 DEBUGOUT("EEPROM read failed\n");
2240 status = hw->eeprom.ops.calc_checksum(hw);
2244 checksum = (u16)(status & 0xffff);
2246 status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM, checksum);
2252 * ixgbe_validate_mac_addr - Validate MAC address
2253 * @mac_addr: pointer to MAC address.
2255 * Tests a MAC address to ensure it is a valid Individual Address.
2257 s32 ixgbe_validate_mac_addr(u8 *mac_addr)
2259 s32 status = IXGBE_SUCCESS;
2261 DEBUGFUNC("ixgbe_validate_mac_addr");
2263 /* Make sure it is not a multicast address */
2264 if (IXGBE_IS_MULTICAST(mac_addr)) {
2265 status = IXGBE_ERR_INVALID_MAC_ADDR;
2266 /* Not a broadcast address */
2267 } else if (IXGBE_IS_BROADCAST(mac_addr)) {
2268 status = IXGBE_ERR_INVALID_MAC_ADDR;
2269 /* Reject the zero address */
2270 } else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
2271 mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0) {
2272 status = IXGBE_ERR_INVALID_MAC_ADDR;
2278 * ixgbe_set_rar_generic - Set Rx address register
2279 * @hw: pointer to hardware structure
2280 * @index: Receive address register to write
2281 * @addr: Address to put into receive address register
2282 * @vmdq: VMDq "set" or "pool" index
2283 * @enable_addr: set flag that address is active
2285 * Puts an ethernet address into a receive address register.
2287 s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
2290 u32 rar_low, rar_high;
2291 u32 rar_entries = hw->mac.num_rar_entries;
2293 DEBUGFUNC("ixgbe_set_rar_generic");
2295 /* Make sure we are using a valid rar index range */
2296 if (index >= rar_entries) {
2297 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
2298 "RAR index %d is out of range.\n", index);
2299 return IXGBE_ERR_INVALID_ARGUMENT;
2302 /* setup VMDq pool selection before this RAR gets enabled */
2303 hw->mac.ops.set_vmdq(hw, index, vmdq);
2306 * HW expects these in little endian so we reverse the byte
2307 * order from network order (big endian) to little endian
2309 rar_low = ((u32)addr[0] |
2310 ((u32)addr[1] << 8) |
2311 ((u32)addr[2] << 16) |
2312 ((u32)addr[3] << 24));
2314 * Some parts put the VMDq setting in the extra RAH bits,
2315 * so save everything except the lower 16 bits that hold part
2316 * of the address and the address valid bit.
2318 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
2319 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
2320 rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8));
2322 if (enable_addr != 0)
2323 rar_high |= IXGBE_RAH_AV;
2325 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low);
2326 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
2328 return IXGBE_SUCCESS;
2332 * ixgbe_clear_rar_generic - Remove Rx address register
2333 * @hw: pointer to hardware structure
2334 * @index: Receive address register to write
2336 * Clears an ethernet address from a receive address register.
2338 s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
2341 u32 rar_entries = hw->mac.num_rar_entries;
2343 DEBUGFUNC("ixgbe_clear_rar_generic");
2345 /* Make sure we are using a valid rar index range */
2346 if (index >= rar_entries) {
2347 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
2348 "RAR index %d is out of range.\n", index);
2349 return IXGBE_ERR_INVALID_ARGUMENT;
2353 * Some parts put the VMDq setting in the extra RAH bits,
2354 * so save everything except the lower 16 bits that hold part
2355 * of the address and the address valid bit.
2357 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
2358 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
2360 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0);
2361 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
2363 /* clear VMDq pool/queue selection for this RAR */
2364 hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL);
2366 return IXGBE_SUCCESS;
2370 * ixgbe_init_rx_addrs_generic - Initializes receive address filters.
2371 * @hw: pointer to hardware structure
2373 * Places the MAC address in receive address register 0 and clears the rest
2374 * of the receive address registers. Clears the multicast table. Assumes
2375 * the receiver is in reset when the routine is called.
2377 s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw)
2380 u32 rar_entries = hw->mac.num_rar_entries;
2382 DEBUGFUNC("ixgbe_init_rx_addrs_generic");
2385 * If the current mac address is valid, assume it is a software override
2386 * to the permanent address.
2387 * Otherwise, use the permanent address from the eeprom.
2389 if (ixgbe_validate_mac_addr(hw->mac.addr) ==
2390 IXGBE_ERR_INVALID_MAC_ADDR) {
2391 /* Get the MAC address from the RAR0 for later reference */
2392 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
2394 DEBUGOUT3(" Keeping Current RAR0 Addr =%.2X %.2X %.2X ",
2395 hw->mac.addr[0], hw->mac.addr[1],
2397 DEBUGOUT3("%.2X %.2X %.2X\n", hw->mac.addr[3],
2398 hw->mac.addr[4], hw->mac.addr[5]);
2400 /* Setup the receive address. */
2401 DEBUGOUT("Overriding MAC Address in RAR[0]\n");
2402 DEBUGOUT3(" New MAC Addr =%.2X %.2X %.2X ",
2403 hw->mac.addr[0], hw->mac.addr[1],
2405 DEBUGOUT3("%.2X %.2X %.2X\n", hw->mac.addr[3],
2406 hw->mac.addr[4], hw->mac.addr[5]);
2408 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
2411 /* clear VMDq pool/queue selection for RAR 0 */
2412 hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL);
2414 hw->addr_ctrl.overflow_promisc = 0;
2416 hw->addr_ctrl.rar_used_count = 1;
2418 /* Zero out the other receive addresses. */
2419 DEBUGOUT1("Clearing RAR[1-%d]\n", rar_entries - 1);
2420 for (i = 1; i < rar_entries; i++) {
2421 IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
2422 IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
2426 hw->addr_ctrl.mta_in_use = 0;
2427 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
2429 DEBUGOUT(" Clearing MTA\n");
2430 for (i = 0; i < hw->mac.mcft_size; i++)
2431 IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0);
2433 ixgbe_init_uta_tables(hw);
2435 return IXGBE_SUCCESS;
2439 * ixgbe_add_uc_addr - Adds a secondary unicast address.
2440 * @hw: pointer to hardware structure
2441 * @addr: new address
2443 * Adds it to unused receive address register or goes into promiscuous mode.
2445 void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
2447 u32 rar_entries = hw->mac.num_rar_entries;
2450 DEBUGFUNC("ixgbe_add_uc_addr");
2452 DEBUGOUT6(" UC Addr = %.2X %.2X %.2X %.2X %.2X %.2X\n",
2453 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
2456 * Place this address in the RAR if there is room,
2457 * else put the controller into promiscuous mode
2459 if (hw->addr_ctrl.rar_used_count < rar_entries) {
2460 rar = hw->addr_ctrl.rar_used_count;
2461 hw->mac.ops.set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
2462 DEBUGOUT1("Added a secondary address to RAR[%d]\n", rar);
2463 hw->addr_ctrl.rar_used_count++;
2465 hw->addr_ctrl.overflow_promisc++;
2468 DEBUGOUT("ixgbe_add_uc_addr Complete\n");
2472 * ixgbe_update_uc_addr_list_generic - Updates MAC list of secondary addresses
2473 * @hw: pointer to hardware structure
2474 * @addr_list: the list of new addresses
2475 * @addr_count: number of addresses
2476 * @next: iterator function to walk the address list
2478 * The given list replaces any existing list. Clears the secondary addrs from
2479 * receive address registers. Uses unused receive address registers for the
2480 * first secondary addresses, and falls back to promiscuous mode as needed.
2482 * Drivers using secondary unicast addresses must set user_set_promisc when
2483 * manually putting the device into promiscuous mode.
2485 s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
2486 u32 addr_count, ixgbe_mc_addr_itr next)
2490 u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc;
2495 DEBUGFUNC("ixgbe_update_uc_addr_list_generic");
2498 * Clear accounting of old secondary address list,
2499 * don't count RAR[0]
2501 uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1;
2502 hw->addr_ctrl.rar_used_count -= uc_addr_in_use;
2503 hw->addr_ctrl.overflow_promisc = 0;
2505 /* Zero out the other receive addresses */
2506 DEBUGOUT1("Clearing RAR[1-%d]\n", uc_addr_in_use+1);
2507 for (i = 0; i < uc_addr_in_use; i++) {
2508 IXGBE_WRITE_REG(hw, IXGBE_RAL(1+i), 0);
2509 IXGBE_WRITE_REG(hw, IXGBE_RAH(1+i), 0);
2512 /* Add the new addresses */
2513 for (i = 0; i < addr_count; i++) {
2514 DEBUGOUT(" Adding the secondary addresses:\n");
2515 addr = next(hw, &addr_list, &vmdq);
2516 ixgbe_add_uc_addr(hw, addr, vmdq);
2519 if (hw->addr_ctrl.overflow_promisc) {
2520 /* enable promisc if not already in overflow or set by user */
2521 if (!old_promisc_setting && !hw->addr_ctrl.user_set_promisc) {
2522 DEBUGOUT(" Entering address overflow promisc mode\n");
2523 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
2524 fctrl |= IXGBE_FCTRL_UPE;
2525 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
2528 /* only disable if set by overflow, not by user */
2529 if (old_promisc_setting && !hw->addr_ctrl.user_set_promisc) {
2530 DEBUGOUT(" Leaving address overflow promisc mode\n");
2531 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
2532 fctrl &= ~IXGBE_FCTRL_UPE;
2533 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
2537 DEBUGOUT("ixgbe_update_uc_addr_list_generic Complete\n");
2538 return IXGBE_SUCCESS;
2542 * ixgbe_mta_vector - Determines bit-vector in multicast table to set
2543 * @hw: pointer to hardware structure
2544 * @mc_addr: the multicast address
2546 * Extracts the 12 bits, from a multicast address, to determine which
2547 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
2548 * incoming rx multicast addresses, to determine the bit-vector to check in
2549 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
2550 * by the MO field of the MCSTCTRL. The MO field is set during initialization
2551 * to mc_filter_type.
2553 STATIC s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
2557 DEBUGFUNC("ixgbe_mta_vector");
2559 switch (hw->mac.mc_filter_type) {
2560 case 0: /* use bits [47:36] of the address */
2561 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
2563 case 1: /* use bits [46:35] of the address */
2564 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
2566 case 2: /* use bits [45:34] of the address */
2567 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
2569 case 3: /* use bits [43:32] of the address */
2570 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
2572 default: /* Invalid mc_filter_type */
2573 DEBUGOUT("MC filter type param set incorrectly\n");
2578 /* vector can only be 12-bits or boundary will be exceeded */
2584 * ixgbe_set_mta - Set bit-vector in multicast table
2585 * @hw: pointer to hardware structure
2586 * @hash_value: Multicast address hash value
2588 * Sets the bit-vector in the multicast table.
2590 void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
2596 DEBUGFUNC("ixgbe_set_mta");
2598 hw->addr_ctrl.mta_in_use++;
2600 vector = ixgbe_mta_vector(hw, mc_addr);
2601 DEBUGOUT1(" bit-vector = 0x%03X\n", vector);
2604 * The MTA is a register array of 128 32-bit registers. It is treated
2605 * like an array of 4096 bits. We want to set bit
2606 * BitArray[vector_value]. So we figure out what register the bit is
2607 * in, read it, OR in the new bit, then write back the new value. The
2608 * register is determined by the upper 7 bits of the vector value and
2609 * the bit within that register are determined by the lower 5 bits of
2612 vector_reg = (vector >> 5) & 0x7F;
2613 vector_bit = vector & 0x1F;
2614 hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit);
2618 * ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses
2619 * @hw: pointer to hardware structure
2620 * @mc_addr_list: the list of new multicast addresses
2621 * @mc_addr_count: number of addresses
2622 * @next: iterator function to walk the multicast address list
2623 * @clear: flag, when set clears the table beforehand
2625 * When the clear flag is set, the given list replaces any existing list.
2626 * Hashes the given addresses into the multicast table.
2628 s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
2629 u32 mc_addr_count, ixgbe_mc_addr_itr next,
2635 DEBUGFUNC("ixgbe_update_mc_addr_list_generic");
2638 * Set the new number of MC addresses that we are being requested to
2641 hw->addr_ctrl.num_mc_addrs = mc_addr_count;
2642 hw->addr_ctrl.mta_in_use = 0;
2644 /* Clear mta_shadow */
2646 DEBUGOUT(" Clearing MTA\n");
2647 memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
2650 /* Update mta_shadow */
2651 for (i = 0; i < mc_addr_count; i++) {
2652 DEBUGOUT(" Adding the multicast addresses:\n");
2653 ixgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq));
2657 for (i = 0; i < hw->mac.mcft_size; i++)
2658 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_MTA(0), i,
2659 hw->mac.mta_shadow[i]);
2661 if (hw->addr_ctrl.mta_in_use > 0)
2662 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL,
2663 IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type);
2665 DEBUGOUT("ixgbe_update_mc_addr_list_generic Complete\n");
2666 return IXGBE_SUCCESS;
2670 * ixgbe_enable_mc_generic - Enable multicast address in RAR
2671 * @hw: pointer to hardware structure
2673 * Enables multicast address in RAR and the use of the multicast hash table.
2675 s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw)
2677 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
2679 DEBUGFUNC("ixgbe_enable_mc_generic");
2681 if (a->mta_in_use > 0)
2682 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE |
2683 hw->mac.mc_filter_type);
2685 return IXGBE_SUCCESS;
2689 * ixgbe_disable_mc_generic - Disable multicast address in RAR
2690 * @hw: pointer to hardware structure
2692 * Disables multicast address in RAR and the use of the multicast hash table.
2694 s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw)
2696 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
2698 DEBUGFUNC("ixgbe_disable_mc_generic");
2700 if (a->mta_in_use > 0)
2701 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
2703 return IXGBE_SUCCESS;
2707 * ixgbe_fc_enable_generic - Enable flow control
2708 * @hw: pointer to hardware structure
2710 * Enable flow control according to the current settings.
2712 s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
2714 s32 ret_val = IXGBE_SUCCESS;
2715 u32 mflcn_reg, fccfg_reg;
2720 DEBUGFUNC("ixgbe_fc_enable_generic");
2722 /* Validate the water mark configuration */
2723 if (!hw->fc.pause_time) {
2724 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
2728 /* Low water mark of zero causes XOFF floods */
2729 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
2730 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
2731 hw->fc.high_water[i]) {
2732 if (!hw->fc.low_water[i] ||
2733 hw->fc.low_water[i] >= hw->fc.high_water[i]) {
2734 DEBUGOUT("Invalid water mark configuration\n");
2735 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
2741 /* Negotiate the fc mode to use */
2742 ixgbe_fc_autoneg(hw);
2744 /* Disable any previous flow control settings */
2745 mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
2746 mflcn_reg &= ~(IXGBE_MFLCN_RPFCE_MASK | IXGBE_MFLCN_RFCE);
2748 fccfg_reg = IXGBE_READ_REG(hw, IXGBE_FCCFG);
2749 fccfg_reg &= ~(IXGBE_FCCFG_TFCE_802_3X | IXGBE_FCCFG_TFCE_PRIORITY);
2752 * The possible values of fc.current_mode are:
2753 * 0: Flow control is completely disabled
2754 * 1: Rx flow control is enabled (we can receive pause frames,
2755 * but not send pause frames).
2756 * 2: Tx flow control is enabled (we can send pause frames but
2757 * we do not support receiving pause frames).
2758 * 3: Both Rx and Tx flow control (symmetric) are enabled.
2761 switch (hw->fc.current_mode) {
2764 * Flow control is disabled by software override or autoneg.
2765 * The code below will actually disable it in the HW.
2768 case ixgbe_fc_rx_pause:
2770 * Rx Flow control is enabled and Tx Flow control is
2771 * disabled by software override. Since there really
2772 * isn't a way to advertise that we are capable of RX
2773 * Pause ONLY, we will advertise that we support both
2774 * symmetric and asymmetric Rx PAUSE. Later, we will
2775 * disable the adapter's ability to send PAUSE frames.
2777 mflcn_reg |= IXGBE_MFLCN_RFCE;
2779 case ixgbe_fc_tx_pause:
2781 * Tx Flow control is enabled, and Rx Flow control is
2782 * disabled by software override.
2784 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
2787 /* Flow control (both Rx and Tx) is enabled by SW override. */
2788 mflcn_reg |= IXGBE_MFLCN_RFCE;
2789 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
2792 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT,
2793 "Flow control param set incorrectly\n");
2794 ret_val = IXGBE_ERR_CONFIG;
2799 /* Set 802.3x based flow control settings. */
2800 mflcn_reg |= IXGBE_MFLCN_DPF;
2801 IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg);
2802 IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg);
2805 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
2806 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
2807 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
2808 hw->fc.high_water[i]) {
2809 fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
2810 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), fcrtl);
2811 fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
2813 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0);
2815 * In order to prevent Tx hangs when the internal Tx
2816 * switch is enabled we must set the high water mark
2817 * to the Rx packet buffer size - 24KB. This allows
2818 * the Tx switch to function even under heavy Rx
2821 fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 24576;
2824 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth);
2827 /* Configure pause time (2 TCs per register) */
2828 reg = hw->fc.pause_time * 0x00010001;
2829 for (i = 0; i < (IXGBE_DCB_MAX_TRAFFIC_CLASS / 2); i++)
2830 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
2832 /* Configure flow control refresh threshold value */
2833 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
2840 * ixgbe_negotiate_fc - Negotiate flow control
2841 * @hw: pointer to hardware structure
2842 * @adv_reg: flow control advertised settings
2843 * @lp_reg: link partner's flow control settings
2844 * @adv_sym: symmetric pause bit in advertisement
2845 * @adv_asm: asymmetric pause bit in advertisement
2846 * @lp_sym: symmetric pause bit in link partner advertisement
2847 * @lp_asm: asymmetric pause bit in link partner advertisement
2849 * Find the intersection between advertised settings and link partner's
2850 * advertised settings
2852 STATIC s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
2853 u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
2855 if ((!(adv_reg)) || (!(lp_reg))) {
2856 ERROR_REPORT3(IXGBE_ERROR_UNSUPPORTED,
2857 "Local or link partner's advertised flow control "
2858 "settings are NULL. Local: %x, link partner: %x\n",
2860 return IXGBE_ERR_FC_NOT_NEGOTIATED;
2863 if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) {
2865 * Now we need to check if the user selected Rx ONLY
2866 * of pause frames. In this case, we had to advertise
2867 * FULL flow control because we could not advertise RX
2868 * ONLY. Hence, we must now check to see if we need to
2869 * turn OFF the TRANSMISSION of PAUSE frames.
2871 if (hw->fc.requested_mode == ixgbe_fc_full) {
2872 hw->fc.current_mode = ixgbe_fc_full;
2873 DEBUGOUT("Flow Control = FULL.\n");
2875 hw->fc.current_mode = ixgbe_fc_rx_pause;
2876 DEBUGOUT("Flow Control=RX PAUSE frames only\n");
2878 } else if (!(adv_reg & adv_sym) && (adv_reg & adv_asm) &&
2879 (lp_reg & lp_sym) && (lp_reg & lp_asm)) {
2880 hw->fc.current_mode = ixgbe_fc_tx_pause;
2881 DEBUGOUT("Flow Control = TX PAUSE frames only.\n");
2882 } else if ((adv_reg & adv_sym) && (adv_reg & adv_asm) &&
2883 !(lp_reg & lp_sym) && (lp_reg & lp_asm)) {
2884 hw->fc.current_mode = ixgbe_fc_rx_pause;
2885 DEBUGOUT("Flow Control = RX PAUSE frames only.\n");
2887 hw->fc.current_mode = ixgbe_fc_none;
2888 DEBUGOUT("Flow Control = NONE.\n");
2890 return IXGBE_SUCCESS;
2894 * ixgbe_fc_autoneg_fiber - Enable flow control on 1 gig fiber
2895 * @hw: pointer to hardware structure
2897 * Enable flow control according on 1 gig fiber.
2899 STATIC s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw)
2901 u32 pcs_anadv_reg, pcs_lpab_reg, linkstat;
2902 s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
2905 * On multispeed fiber at 1g, bail out if
2906 * - link is up but AN did not complete, or if
2907 * - link is up and AN completed but timed out
2910 linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
2911 if ((!!(linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
2912 (!!(linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) {
2913 DEBUGOUT("Auto-Negotiation did not complete or timed out\n");
2917 pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
2918 pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
2920 ret_val = ixgbe_negotiate_fc(hw, pcs_anadv_reg,
2921 pcs_lpab_reg, IXGBE_PCS1GANA_SYM_PAUSE,
2922 IXGBE_PCS1GANA_ASM_PAUSE,
2923 IXGBE_PCS1GANA_SYM_PAUSE,
2924 IXGBE_PCS1GANA_ASM_PAUSE);
2931 * ixgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37
2932 * @hw: pointer to hardware structure
2934 * Enable flow control according to IEEE clause 37.
2936 STATIC s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw)
2938 u32 links2, anlp1_reg, autoc_reg, links;
2939 s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
2942 * On backplane, bail out if
2943 * - backplane autoneg was not completed, or if
2944 * - we are 82599 and link partner is not AN enabled
2946 links = IXGBE_READ_REG(hw, IXGBE_LINKS);
2947 if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) {
2948 DEBUGOUT("Auto-Negotiation did not complete\n");
2952 if (hw->mac.type == ixgbe_mac_82599EB) {
2953 links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
2954 if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) {
2955 DEBUGOUT("Link partner is not AN enabled\n");
2960 * Read the 10g AN autoc and LP ability registers and resolve
2961 * local flow control settings accordingly
2963 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2964 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2966 ret_val = ixgbe_negotiate_fc(hw, autoc_reg,
2967 anlp1_reg, IXGBE_AUTOC_SYM_PAUSE, IXGBE_AUTOC_ASM_PAUSE,
2968 IXGBE_ANLP1_SYM_PAUSE, IXGBE_ANLP1_ASM_PAUSE);
2975 * ixgbe_fc_autoneg_copper - Enable flow control IEEE clause 37
2976 * @hw: pointer to hardware structure
2978 * Enable flow control according to IEEE clause 37.
2980 STATIC s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw)
2982 u16 technology_ability_reg = 0;
2983 u16 lp_technology_ability_reg = 0;
2985 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT,
2986 IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
2987 &technology_ability_reg);
2988 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_LP,
2989 IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
2990 &lp_technology_ability_reg);
2992 return ixgbe_negotiate_fc(hw, (u32)technology_ability_reg,
2993 (u32)lp_technology_ability_reg,
2994 IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE,
2995 IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE);
2999 * ixgbe_fc_autoneg - Configure flow control
3000 * @hw: pointer to hardware structure
3002 * Compares our advertised flow control capabilities to those advertised by
3003 * our link partner, and determines the proper flow control mode to use.
3005 void ixgbe_fc_autoneg(struct ixgbe_hw *hw)
3007 s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
3008 ixgbe_link_speed speed;
3011 DEBUGFUNC("ixgbe_fc_autoneg");
3014 * AN should have completed when the cable was plugged in.
3015 * Look for reasons to bail out. Bail out if:
3016 * - FC autoneg is disabled, or if
3019 if (hw->fc.disable_fc_autoneg) {
3020 ERROR_REPORT1(IXGBE_ERROR_UNSUPPORTED,
3021 "Flow control autoneg is disabled");
3025 hw->mac.ops.check_link(hw, &speed, &link_up, false);
3027 ERROR_REPORT1(IXGBE_ERROR_SOFTWARE, "The link is down");
3031 switch (hw->phy.media_type) {
3032 /* Autoneg flow control on fiber adapters */
3033 case ixgbe_media_type_fiber_qsfp:
3034 case ixgbe_media_type_fiber:
3035 if (speed == IXGBE_LINK_SPEED_1GB_FULL)
3036 ret_val = ixgbe_fc_autoneg_fiber(hw);
3039 /* Autoneg flow control on backplane adapters */
3040 case ixgbe_media_type_backplane:
3041 ret_val = ixgbe_fc_autoneg_backplane(hw);
3044 /* Autoneg flow control on copper adapters */
3045 case ixgbe_media_type_copper:
3046 if (ixgbe_device_supports_autoneg_fc(hw))
3047 ret_val = ixgbe_fc_autoneg_copper(hw);
3055 if (ret_val == IXGBE_SUCCESS) {
3056 hw->fc.fc_was_autonegged = true;
3058 hw->fc.fc_was_autonegged = false;
3059 hw->fc.current_mode = hw->fc.requested_mode;
3064 * ixgbe_pcie_timeout_poll - Return number of times to poll for completion
3065 * @hw: pointer to hardware structure
3067 * System-wide timeout range is encoded in PCIe Device Control2 register.
3069 * Add 10% to specified maximum and return the number of times to poll for
3070 * completion timeout, in units of 100 microsec. Never return less than
3071 * 800 = 80 millisec.
3073 STATIC u32 ixgbe_pcie_timeout_poll(struct ixgbe_hw *hw)
3078 devctl2 = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_CONTROL2);
3079 devctl2 &= IXGBE_PCIDEVCTRL2_TIMEO_MASK;
3082 case IXGBE_PCIDEVCTRL2_65_130ms:
3083 pollcnt = 1300; /* 130 millisec */
3085 case IXGBE_PCIDEVCTRL2_260_520ms:
3086 pollcnt = 5200; /* 520 millisec */
3088 case IXGBE_PCIDEVCTRL2_1_2s:
3089 pollcnt = 20000; /* 2 sec */
3091 case IXGBE_PCIDEVCTRL2_4_8s:
3092 pollcnt = 80000; /* 8 sec */
3094 case IXGBE_PCIDEVCTRL2_17_34s:
3095 pollcnt = 34000; /* 34 sec */
3097 case IXGBE_PCIDEVCTRL2_50_100us: /* 100 microsecs */
3098 case IXGBE_PCIDEVCTRL2_1_2ms: /* 2 millisecs */
3099 case IXGBE_PCIDEVCTRL2_16_32ms: /* 32 millisec */
3100 case IXGBE_PCIDEVCTRL2_16_32ms_def: /* 32 millisec default */
3102 pollcnt = 800; /* 80 millisec minimum */
3106 /* add 10% to spec maximum */
3107 return (pollcnt * 11) / 10;
3111 * ixgbe_disable_pcie_master - Disable PCI-express master access
3112 * @hw: pointer to hardware structure
3114 * Disables PCI-Express master access and verifies there are no pending
3115 * requests. IXGBE_ERR_MASTER_REQUESTS_PENDING is returned if master disable
3116 * bit hasn't caused the master requests to be disabled, else IXGBE_SUCCESS
3117 * is returned signifying master requests disabled.
3119 s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
3121 s32 status = IXGBE_SUCCESS;
3125 DEBUGFUNC("ixgbe_disable_pcie_master");
3127 /* Always set this bit to ensure any future transactions are blocked */
3128 IXGBE_WRITE_REG(hw, IXGBE_CTRL, IXGBE_CTRL_GIO_DIS);
3130 /* Exit if master requests are blocked */
3131 if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO) ||
3132 IXGBE_REMOVED(hw->hw_addr))
3135 /* Poll for master request bit to clear */
3136 for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) {
3138 if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO))
3143 * Two consecutive resets are required via CTRL.RST per datasheet
3144 * 5.2.5.3.2 Master Disable. We set a flag to inform the reset routine
3145 * of this need. The first reset prevents new master requests from
3146 * being issued by our device. We then must wait 1usec or more for any
3147 * remaining completions from the PCIe bus to trickle in, and then reset
3148 * again to clear out any effects they may have had on our device.
3150 DEBUGOUT("GIO Master Disable bit didn't clear - requesting resets\n");
3151 hw->mac.flags |= IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
3153 if (hw->mac.type >= ixgbe_mac_X550)
3157 * Before proceeding, make sure that the PCIe block does not have
3158 * transactions pending.
3160 poll = ixgbe_pcie_timeout_poll(hw);
3161 for (i = 0; i < poll; i++) {
3163 value = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_STATUS);
3164 if (IXGBE_REMOVED(hw->hw_addr))
3166 if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING))
3170 ERROR_REPORT1(IXGBE_ERROR_POLLING,
3171 "PCIe transaction pending bit also did not clear.\n");
3172 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
3179 * ixgbe_acquire_swfw_sync - Acquire SWFW semaphore
3180 * @hw: pointer to hardware structure
3181 * @mask: Mask to specify which semaphore to acquire
3183 * Acquires the SWFW semaphore through the GSSR register for the specified
3184 * function (CSR, PHY0, PHY1, EEPROM, Flash)
3186 s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
3190 u32 fwmask = mask << 5;
3194 DEBUGFUNC("ixgbe_acquire_swfw_sync");
3196 for (i = 0; i < timeout; i++) {
3198 * SW NVM semaphore bit is used for access to all
3199 * SW_FW_SYNC bits (not just NVM)
3201 if (ixgbe_get_eeprom_semaphore(hw))
3202 return IXGBE_ERR_SWFW_SYNC;
3204 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
3205 if (!(gssr & (fwmask | swmask))) {
3207 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
3208 ixgbe_release_eeprom_semaphore(hw);
3209 return IXGBE_SUCCESS;
3211 /* Resource is currently in use by FW or SW */
3212 ixgbe_release_eeprom_semaphore(hw);
3217 /* If time expired clear the bits holding the lock and retry */
3218 if (gssr & (fwmask | swmask))
3219 ixgbe_release_swfw_sync(hw, gssr & (fwmask | swmask));
3222 return IXGBE_ERR_SWFW_SYNC;
3226 * ixgbe_release_swfw_sync - Release SWFW semaphore
3227 * @hw: pointer to hardware structure
3228 * @mask: Mask to specify which semaphore to release
3230 * Releases the SWFW semaphore through the GSSR register for the specified
3231 * function (CSR, PHY0, PHY1, EEPROM, Flash)
3233 void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u32 mask)
3238 DEBUGFUNC("ixgbe_release_swfw_sync");
3240 ixgbe_get_eeprom_semaphore(hw);
3242 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
3244 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
3246 ixgbe_release_eeprom_semaphore(hw);
3250 * ixgbe_disable_sec_rx_path_generic - Stops the receive data path
3251 * @hw: pointer to hardware structure
3253 * Stops the receive data path and waits for the HW to internally empty
3254 * the Rx security block
3256 s32 ixgbe_disable_sec_rx_path_generic(struct ixgbe_hw *hw)
3258 #define IXGBE_MAX_SECRX_POLL 40
3263 DEBUGFUNC("ixgbe_disable_sec_rx_path_generic");
3266 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
3267 secrxreg |= IXGBE_SECRXCTRL_RX_DIS;
3268 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
3269 for (i = 0; i < IXGBE_MAX_SECRX_POLL; i++) {
3270 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
3271 if (secrxreg & IXGBE_SECRXSTAT_SECRX_RDY)
3274 /* Use interrupt-safe sleep just in case */
3278 /* For informational purposes only */
3279 if (i >= IXGBE_MAX_SECRX_POLL)
3280 DEBUGOUT("Rx unit being enabled before security "
3281 "path fully disabled. Continuing with init.\n");
3283 return IXGBE_SUCCESS;
3287 * prot_autoc_read_generic - Hides MAC differences needed for AUTOC read
3288 * @hw: pointer to hardware structure
3289 * @reg_val: Value we read from AUTOC
3291 * The default case requires no protection so just to the register read.
3293 s32 prot_autoc_read_generic(struct ixgbe_hw *hw, bool *locked, u32 *reg_val)
3296 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
3297 return IXGBE_SUCCESS;
3301 * prot_autoc_write_generic - Hides MAC differences needed for AUTOC write
3302 * @hw: pointer to hardware structure
3303 * @reg_val: value to write to AUTOC
3304 * @locked: bool to indicate whether the SW/FW lock was already taken by
3307 * The default case requires no protection so just to the register write.
3309 s32 prot_autoc_write_generic(struct ixgbe_hw *hw, u32 reg_val, bool locked)
3311 UNREFERENCED_1PARAMETER(locked);
3313 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_val);
3314 return IXGBE_SUCCESS;
3318 * ixgbe_enable_sec_rx_path_generic - Enables the receive data path
3319 * @hw: pointer to hardware structure
3321 * Enables the receive data path.
3323 s32 ixgbe_enable_sec_rx_path_generic(struct ixgbe_hw *hw)
3327 DEBUGFUNC("ixgbe_enable_sec_rx_path_generic");
3329 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
3330 secrxreg &= ~IXGBE_SECRXCTRL_RX_DIS;
3331 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
3332 IXGBE_WRITE_FLUSH(hw);
3334 return IXGBE_SUCCESS;
3338 * ixgbe_enable_rx_dma_generic - Enable the Rx DMA unit
3339 * @hw: pointer to hardware structure
3340 * @regval: register value to write to RXCTRL
3342 * Enables the Rx DMA unit
3344 s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval)
3346 DEBUGFUNC("ixgbe_enable_rx_dma_generic");
3348 if (regval & IXGBE_RXCTRL_RXEN)
3349 ixgbe_enable_rx(hw);
3351 ixgbe_disable_rx(hw);
3353 return IXGBE_SUCCESS;
3357 * ixgbe_blink_led_start_generic - Blink LED based on index.
3358 * @hw: pointer to hardware structure
3359 * @index: led number to blink
3361 s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
3363 ixgbe_link_speed speed = 0;
3366 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
3367 s32 ret_val = IXGBE_SUCCESS;
3368 bool locked = false;
3370 DEBUGFUNC("ixgbe_blink_led_start_generic");
3373 * Link must be up to auto-blink the LEDs;
3374 * Force it if link is down.
3376 hw->mac.ops.check_link(hw, &speed, &link_up, false);
3379 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
3380 if (ret_val != IXGBE_SUCCESS)
3383 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
3384 autoc_reg |= IXGBE_AUTOC_FLU;
3386 ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked);
3387 if (ret_val != IXGBE_SUCCESS)
3390 IXGBE_WRITE_FLUSH(hw);
3394 led_reg &= ~IXGBE_LED_MODE_MASK(index);
3395 led_reg |= IXGBE_LED_BLINK(index);
3396 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
3397 IXGBE_WRITE_FLUSH(hw);
3404 * ixgbe_blink_led_stop_generic - Stop blinking LED based on index.
3405 * @hw: pointer to hardware structure
3406 * @index: led number to stop blinking
3408 s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
3411 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
3412 s32 ret_val = IXGBE_SUCCESS;
3413 bool locked = false;
3415 DEBUGFUNC("ixgbe_blink_led_stop_generic");
3417 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
3418 if (ret_val != IXGBE_SUCCESS)
3421 autoc_reg &= ~IXGBE_AUTOC_FLU;
3422 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
3424 ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked);
3425 if (ret_val != IXGBE_SUCCESS)
3428 led_reg &= ~IXGBE_LED_MODE_MASK(index);
3429 led_reg &= ~IXGBE_LED_BLINK(index);
3430 led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
3431 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
3432 IXGBE_WRITE_FLUSH(hw);
3439 * ixgbe_get_san_mac_addr_offset - Get SAN MAC address offset from the EEPROM
3440 * @hw: pointer to hardware structure
3441 * @san_mac_offset: SAN MAC address offset
3443 * This function will read the EEPROM location for the SAN MAC address
3444 * pointer, and returns the value at that location. This is used in both
3445 * get and set mac_addr routines.
3447 STATIC s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw,
3448 u16 *san_mac_offset)
3452 DEBUGFUNC("ixgbe_get_san_mac_addr_offset");
3455 * First read the EEPROM pointer to see if the MAC addresses are
3458 ret_val = hw->eeprom.ops.read(hw, IXGBE_SAN_MAC_ADDR_PTR,
3461 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
3462 "eeprom at offset %d failed",
3463 IXGBE_SAN_MAC_ADDR_PTR);
3470 * ixgbe_get_san_mac_addr_generic - SAN MAC address retrieval from the EEPROM
3471 * @hw: pointer to hardware structure
3472 * @san_mac_addr: SAN MAC address
3474 * Reads the SAN MAC address from the EEPROM, if it's available. This is
3475 * per-port, so set_lan_id() must be called before reading the addresses.
3476 * set_lan_id() is called by identify_sfp(), but this cannot be relied
3477 * upon for non-SFP connections, so we must call it here.
3479 s32 ixgbe_get_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr)
3481 u16 san_mac_data, san_mac_offset;
3485 DEBUGFUNC("ixgbe_get_san_mac_addr_generic");
3488 * First read the EEPROM pointer to see if the MAC addresses are
3489 * available. If they're not, no point in calling set_lan_id() here.
3491 ret_val = ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset);
3492 if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF)
3493 goto san_mac_addr_out;
3495 /* make sure we know which port we need to program */
3496 hw->mac.ops.set_lan_id(hw);
3497 /* apply the port offset to the address offset */
3498 (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) :
3499 (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET);
3500 for (i = 0; i < 3; i++) {
3501 ret_val = hw->eeprom.ops.read(hw, san_mac_offset,
3504 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
3505 "eeprom read at offset %d failed",
3507 goto san_mac_addr_out;
3509 san_mac_addr[i * 2] = (u8)(san_mac_data);
3510 san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8);
3513 return IXGBE_SUCCESS;
3517 * No addresses available in this EEPROM. It's not an
3518 * error though, so just wipe the local address and return.
3520 for (i = 0; i < 6; i++)
3521 san_mac_addr[i] = 0xFF;
3522 return IXGBE_SUCCESS;
3526 * ixgbe_set_san_mac_addr_generic - Write the SAN MAC address to the EEPROM
3527 * @hw: pointer to hardware structure
3528 * @san_mac_addr: SAN MAC address
3530 * Write a SAN MAC address to the EEPROM.
3532 s32 ixgbe_set_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr)
3535 u16 san_mac_data, san_mac_offset;
3538 DEBUGFUNC("ixgbe_set_san_mac_addr_generic");
3540 /* Look for SAN mac address pointer. If not defined, return */
3541 ret_val = ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset);
3542 if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF)
3543 return IXGBE_ERR_NO_SAN_ADDR_PTR;
3545 /* Make sure we know which port we need to write */
3546 hw->mac.ops.set_lan_id(hw);
3547 /* Apply the port offset to the address offset */
3548 (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) :
3549 (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET);
3551 for (i = 0; i < 3; i++) {
3552 san_mac_data = (u16)((u16)(san_mac_addr[i * 2 + 1]) << 8);
3553 san_mac_data |= (u16)(san_mac_addr[i * 2]);
3554 hw->eeprom.ops.write(hw, san_mac_offset, san_mac_data);
3558 return IXGBE_SUCCESS;
3562 * ixgbe_get_pcie_msix_count_generic - Gets MSI-X vector count
3563 * @hw: pointer to hardware structure
3565 * Read PCIe configuration space, and get the MSI-X vector count from
3566 * the capabilities table.
3568 u16 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw)
3574 switch (hw->mac.type) {
3575 case ixgbe_mac_82598EB:
3576 pcie_offset = IXGBE_PCIE_MSIX_82598_CAPS;
3577 max_msix_count = IXGBE_MAX_MSIX_VECTORS_82598;
3579 case ixgbe_mac_82599EB:
3580 case ixgbe_mac_X540:
3581 case ixgbe_mac_X550:
3582 case ixgbe_mac_X550EM_x:
3583 case ixgbe_mac_X550EM_a:
3584 pcie_offset = IXGBE_PCIE_MSIX_82599_CAPS;
3585 max_msix_count = IXGBE_MAX_MSIX_VECTORS_82599;
3591 DEBUGFUNC("ixgbe_get_pcie_msix_count_generic");
3592 msix_count = IXGBE_READ_PCIE_WORD(hw, pcie_offset);
3593 if (IXGBE_REMOVED(hw->hw_addr))
3595 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
3597 /* MSI-X count is zero-based in HW */
3600 if (msix_count > max_msix_count)
3601 msix_count = max_msix_count;
3607 * ixgbe_insert_mac_addr_generic - Find a RAR for this mac address
3608 * @hw: pointer to hardware structure
3609 * @addr: Address to put into receive address register
3610 * @vmdq: VMDq pool to assign
3612 * Puts an ethernet address into a receive address register, or
3613 * finds the rar that it is aleady in; adds to the pool list
3615 s32 ixgbe_insert_mac_addr_generic(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
3617 static const u32 NO_EMPTY_RAR_FOUND = 0xFFFFFFFF;
3618 u32 first_empty_rar = NO_EMPTY_RAR_FOUND;
3620 u32 rar_low, rar_high;
3621 u32 addr_low, addr_high;
3623 DEBUGFUNC("ixgbe_insert_mac_addr_generic");
3625 /* swap bytes for HW little endian */
3626 addr_low = addr[0] | (addr[1] << 8)
3629 addr_high = addr[4] | (addr[5] << 8);
3632 * Either find the mac_id in rar or find the first empty space.
3633 * rar_highwater points to just after the highest currently used
3634 * rar in order to shorten the search. It grows when we add a new
3637 for (rar = 0; rar < hw->mac.rar_highwater; rar++) {
3638 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
3640 if (((IXGBE_RAH_AV & rar_high) == 0)
3641 && first_empty_rar == NO_EMPTY_RAR_FOUND) {
3642 first_empty_rar = rar;
3643 } else if ((rar_high & 0xFFFF) == addr_high) {
3644 rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(rar));
3645 if (rar_low == addr_low)
3646 break; /* found it already in the rars */
3650 if (rar < hw->mac.rar_highwater) {
3651 /* already there so just add to the pool bits */
3652 ixgbe_set_vmdq(hw, rar, vmdq);
3653 } else if (first_empty_rar != NO_EMPTY_RAR_FOUND) {
3654 /* stick it into first empty RAR slot we found */
3655 rar = first_empty_rar;
3656 ixgbe_set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
3657 } else if (rar == hw->mac.rar_highwater) {
3658 /* add it to the top of the list and inc the highwater mark */
3659 ixgbe_set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
3660 hw->mac.rar_highwater++;
3661 } else if (rar >= hw->mac.num_rar_entries) {
3662 return IXGBE_ERR_INVALID_MAC_ADDR;
3666 * If we found rar[0], make sure the default pool bit (we use pool 0)
3667 * remains cleared to be sure default pool packets will get delivered
3670 ixgbe_clear_vmdq(hw, rar, 0);
3676 * ixgbe_clear_vmdq_generic - Disassociate a VMDq pool index from a rx address
3677 * @hw: pointer to hardware struct
3678 * @rar: receive address register index to disassociate
3679 * @vmdq: VMDq pool index to remove from the rar
3681 s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
3683 u32 mpsar_lo, mpsar_hi;
3684 u32 rar_entries = hw->mac.num_rar_entries;
3686 DEBUGFUNC("ixgbe_clear_vmdq_generic");
3688 /* Make sure we are using a valid rar index range */
3689 if (rar >= rar_entries) {
3690 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
3691 "RAR index %d is out of range.\n", rar);
3692 return IXGBE_ERR_INVALID_ARGUMENT;
3695 mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
3696 mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
3698 if (IXGBE_REMOVED(hw->hw_addr))
3701 if (!mpsar_lo && !mpsar_hi)
3704 if (vmdq == IXGBE_CLEAR_VMDQ_ALL) {
3706 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
3710 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
3713 } else if (vmdq < 32) {
3714 mpsar_lo &= ~(1 << vmdq);
3715 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo);
3717 mpsar_hi &= ~(1 << (vmdq - 32));
3718 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi);
3721 /* was that the last pool using this rar? */
3722 if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0)
3723 hw->mac.ops.clear_rar(hw, rar);
3725 return IXGBE_SUCCESS;
3729 * ixgbe_set_vmdq_generic - Associate a VMDq pool index with a rx address
3730 * @hw: pointer to hardware struct
3731 * @rar: receive address register index to associate with a VMDq index
3732 * @vmdq: VMDq pool index
3734 s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
3737 u32 rar_entries = hw->mac.num_rar_entries;
3739 DEBUGFUNC("ixgbe_set_vmdq_generic");
3741 /* Make sure we are using a valid rar index range */
3742 if (rar >= rar_entries) {
3743 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
3744 "RAR index %d is out of range.\n", rar);
3745 return IXGBE_ERR_INVALID_ARGUMENT;
3749 mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
3751 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar);
3753 mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
3754 mpsar |= 1 << (vmdq - 32);
3755 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar);
3757 return IXGBE_SUCCESS;
3761 * This function should only be involved in the IOV mode.
3762 * In IOV mode, Default pool is next pool after the number of
3763 * VFs advertized and not 0.
3764 * MPSAR table needs to be updated for SAN_MAC RAR [hw->mac.san_mac_rar_index]
3766 * ixgbe_set_vmdq_san_mac - Associate default VMDq pool index with a rx address
3767 * @hw: pointer to hardware struct
3768 * @vmdq: VMDq pool index
3770 s32 ixgbe_set_vmdq_san_mac_generic(struct ixgbe_hw *hw, u32 vmdq)
3772 u32 rar = hw->mac.san_mac_rar_index;
3774 DEBUGFUNC("ixgbe_set_vmdq_san_mac");
3777 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 1 << vmdq);
3778 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
3780 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
3781 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 1 << (vmdq - 32));
3784 return IXGBE_SUCCESS;
3788 * ixgbe_init_uta_tables_generic - Initialize the Unicast Table Array
3789 * @hw: pointer to hardware structure
3791 s32 ixgbe_init_uta_tables_generic(struct ixgbe_hw *hw)
3795 DEBUGFUNC("ixgbe_init_uta_tables_generic");
3796 DEBUGOUT(" Clearing UTA\n");
3798 for (i = 0; i < 128; i++)
3799 IXGBE_WRITE_REG(hw, IXGBE_UTA(i), 0);
3801 return IXGBE_SUCCESS;
3805 * ixgbe_find_vlvf_slot - find the vlanid or the first empty slot
3806 * @hw: pointer to hardware structure
3807 * @vlan: VLAN id to write to VLAN filter
3809 * return the VLVF index where this VLAN id should be placed
3812 s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan, bool vlvf_bypass)
3814 s32 regindex, first_empty_slot;
3817 /* short cut the special case */
3821 /* if vlvf_bypass is set we don't want to use an empty slot, we
3822 * will simply bypass the VLVF if there are no entries present in the
3823 * VLVF that contain our VLAN
3825 first_empty_slot = vlvf_bypass ? IXGBE_ERR_NO_SPACE : 0;
3827 /* add VLAN enable bit for comparison */
3828 vlan |= IXGBE_VLVF_VIEN;
3830 /* Search for the vlan id in the VLVF entries. Save off the first empty
3831 * slot found along the way.
3833 * pre-decrement loop covering (IXGBE_VLVF_ENTRIES - 1) .. 1
3835 for (regindex = IXGBE_VLVF_ENTRIES; --regindex;) {
3836 bits = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex));
3839 if (!first_empty_slot && !bits)
3840 first_empty_slot = regindex;
3843 /* If we are here then we didn't find the VLAN. Return first empty
3844 * slot we found during our search, else error.
3846 if (!first_empty_slot)
3847 ERROR_REPORT1(IXGBE_ERROR_SOFTWARE, "No space in VLVF.\n");
3849 return first_empty_slot ? first_empty_slot : IXGBE_ERR_NO_SPACE;
3853 * ixgbe_set_vfta_generic - Set VLAN filter table
3854 * @hw: pointer to hardware structure
3855 * @vlan: VLAN id to write to VLAN filter
3856 * @vind: VMDq output index that maps queue to VLAN id in VLVFB
3857 * @vlan_on: boolean flag to turn on/off VLAN
3858 * @vlvf_bypass: boolean flag indicating updating default pool is okay
3860 * Turn on/off specified VLAN in the VLAN filter table.
3862 s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
3863 bool vlan_on, bool vlvf_bypass)
3865 u32 regidx, vfta_delta, vfta;
3868 DEBUGFUNC("ixgbe_set_vfta_generic");
3870 if (vlan > 4095 || vind > 63)
3871 return IXGBE_ERR_PARAM;
3874 * this is a 2 part operation - first the VFTA, then the
3875 * VLVF and VLVFB if VT Mode is set
3876 * We don't write the VFTA until we know the VLVF part succeeded.
3880 * The VFTA is a bitstring made up of 128 32-bit registers
3881 * that enable the particular VLAN id, much like the MTA:
3882 * bits[11-5]: which register
3883 * bits[4-0]: which bit in the register
3886 vfta_delta = 1 << (vlan % 32);
3887 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(regidx));
3889 /* vfta_delta represents the difference between the current value
3890 * of vfta and the value we want in the register. Since the diff
3891 * is an XOR mask we can just update the vfta using an XOR
3893 vfta_delta &= vlan_on ? ~vfta : vfta;
3897 * Call ixgbe_set_vlvf_generic to set VLVFB and VLVF
3899 ret_val = ixgbe_set_vlvf_generic(hw, vlan, vind, vlan_on, &vfta_delta,
3901 if (ret_val != IXGBE_SUCCESS) {
3908 /* Update VFTA now that we are ready for traffic */
3910 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regidx), vfta);
3912 return IXGBE_SUCCESS;
3916 * ixgbe_set_vlvf_generic - Set VLAN Pool Filter
3917 * @hw: pointer to hardware structure
3918 * @vlan: VLAN id to write to VLAN filter
3919 * @vind: VMDq output index that maps queue to VLAN id in VLVFB
3920 * @vlan_on: boolean flag to turn on/off VLAN in VLVF
3921 * @vfta_delta: pointer to the difference between the current value of VFTA
3922 * and the desired value
3923 * @vfta: the desired value of the VFTA
3924 * @vlvf_bypass: boolean flag indicating updating default pool is okay
3926 * Turn on/off specified bit in VLVF table.
3928 s32 ixgbe_set_vlvf_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
3929 bool vlan_on, u32 *vfta_delta, u32 vfta,
3935 DEBUGFUNC("ixgbe_set_vlvf_generic");
3937 if (vlan > 4095 || vind > 63)
3938 return IXGBE_ERR_PARAM;
3940 /* If VT Mode is set
3942 * make sure the vlan is in VLVF
3943 * set the vind bit in the matching VLVFB
3945 * clear the pool bit and possibly the vind
3947 if (!(IXGBE_READ_REG(hw, IXGBE_VT_CTL) & IXGBE_VT_CTL_VT_ENABLE))
3948 return IXGBE_SUCCESS;
3949 vlvf_index = ixgbe_find_vlvf_slot(hw, vlan, vlvf_bypass);
3953 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + vind / 32));
3955 /* set the pool bit */
3956 bits |= 1 << (vind % 32);
3960 /* clear the pool bit */
3961 bits ^= 1 << (vind % 32);
3964 !IXGBE_READ_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + 1 - vind / 32))) {
3965 /* Clear VFTA first, then disable VLVF. Otherwise
3966 * we run the risk of stray packets leaking into
3967 * the PF via the default pool
3970 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vlan / 32), vfta);
3972 /* disable VLVF and clear remaining bit from pool */
3973 IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), 0);
3974 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + vind / 32), 0);
3976 return IXGBE_SUCCESS;
3978 /* If there are still bits set in the VLVFB registers
3979 * for the VLAN ID indicated we need to see if the
3980 * caller is requesting that we clear the VFTA entry bit.
3981 * If the caller has requested that we clear the VFTA
3982 * entry bit but there are still pools/VFs using this VLAN
3983 * ID entry then ignore the request. We're not worried
3984 * about the case where we're turning the VFTA VLAN ID
3985 * entry bit on, only when requested to turn it off as
3986 * there may be multiple pools and/or VFs using the
3987 * VLAN ID entry. In that case we cannot clear the
3988 * VFTA bit until all pools/VFs using that VLAN ID have also
3989 * been cleared. This will be indicated by "bits" being
3995 /* record pool change and enable VLAN ID if not already enabled */
3996 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(vlvf_index * 2 + vind / 32), bits);
3997 IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), IXGBE_VLVF_VIEN | vlan);
3999 return IXGBE_SUCCESS;
4003 * ixgbe_clear_vfta_generic - Clear VLAN filter table
4004 * @hw: pointer to hardware structure
4006 * Clears the VLAN filer table, and the VMDq index associated with the filter
4008 s32 ixgbe_clear_vfta_generic(struct ixgbe_hw *hw)
4012 DEBUGFUNC("ixgbe_clear_vfta_generic");
4014 for (offset = 0; offset < hw->mac.vft_size; offset++)
4015 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
4017 for (offset = 0; offset < IXGBE_VLVF_ENTRIES; offset++) {
4018 IXGBE_WRITE_REG(hw, IXGBE_VLVF(offset), 0);
4019 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset * 2), 0);
4020 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset * 2 + 1), 0);
4023 return IXGBE_SUCCESS;
4027 * ixgbe_check_mac_link_generic - Determine link and speed status
4028 * @hw: pointer to hardware structure
4029 * @speed: pointer to link speed
4030 * @link_up: true when link is up
4031 * @link_up_wait_to_complete: bool used to wait for link up or not
4033 * Reads the links register to determine if link is up and the current speed
4035 s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
4036 bool *link_up, bool link_up_wait_to_complete)
4038 u32 links_reg, links_orig;
4041 DEBUGFUNC("ixgbe_check_mac_link_generic");
4043 /* clear the old state */
4044 links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS);
4046 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
4048 if (links_orig != links_reg) {
4049 DEBUGOUT2("LINKS changed from %08X to %08X\n",
4050 links_orig, links_reg);
4053 if (link_up_wait_to_complete) {
4054 for (i = 0; i < hw->mac.max_link_up_time; i++) {
4055 if (links_reg & IXGBE_LINKS_UP) {
4062 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
4065 if (links_reg & IXGBE_LINKS_UP)
4071 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
4072 case IXGBE_LINKS_SPEED_10G_82599:
4073 *speed = IXGBE_LINK_SPEED_10GB_FULL;
4074 if (hw->mac.type >= ixgbe_mac_X550) {
4075 if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
4076 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
4079 case IXGBE_LINKS_SPEED_1G_82599:
4080 *speed = IXGBE_LINK_SPEED_1GB_FULL;
4082 case IXGBE_LINKS_SPEED_100_82599:
4083 *speed = IXGBE_LINK_SPEED_100_FULL;
4084 if (hw->mac.type >= ixgbe_mac_X550) {
4085 if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
4086 *speed = IXGBE_LINK_SPEED_5GB_FULL;
4090 *speed = IXGBE_LINK_SPEED_UNKNOWN;
4093 return IXGBE_SUCCESS;
4097 * ixgbe_get_wwn_prefix_generic - Get alternative WWNN/WWPN prefix from
4099 * @hw: pointer to hardware structure
4100 * @wwnn_prefix: the alternative WWNN prefix
4101 * @wwpn_prefix: the alternative WWPN prefix
4103 * This function will read the EEPROM from the alternative SAN MAC address
4104 * block to check the support for the alternative WWNN/WWPN prefix support.
4106 s32 ixgbe_get_wwn_prefix_generic(struct ixgbe_hw *hw, u16 *wwnn_prefix,
4110 u16 alt_san_mac_blk_offset;
4112 DEBUGFUNC("ixgbe_get_wwn_prefix_generic");
4114 /* clear output first */
4115 *wwnn_prefix = 0xFFFF;
4116 *wwpn_prefix = 0xFFFF;
4118 /* check if alternative SAN MAC is supported */
4119 offset = IXGBE_ALT_SAN_MAC_ADDR_BLK_PTR;
4120 if (hw->eeprom.ops.read(hw, offset, &alt_san_mac_blk_offset))
4121 goto wwn_prefix_err;
4123 if ((alt_san_mac_blk_offset == 0) ||
4124 (alt_san_mac_blk_offset == 0xFFFF))
4125 goto wwn_prefix_out;
4127 /* check capability in alternative san mac address block */
4128 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET;
4129 if (hw->eeprom.ops.read(hw, offset, &caps))
4130 goto wwn_prefix_err;
4131 if (!(caps & IXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN))
4132 goto wwn_prefix_out;
4134 /* get the corresponding prefix for WWNN/WWPN */
4135 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET;
4136 if (hw->eeprom.ops.read(hw, offset, wwnn_prefix)) {
4137 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
4138 "eeprom read at offset %d failed", offset);
4141 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET;
4142 if (hw->eeprom.ops.read(hw, offset, wwpn_prefix))
4143 goto wwn_prefix_err;
4146 return IXGBE_SUCCESS;
4149 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
4150 "eeprom read at offset %d failed", offset);
4151 return IXGBE_SUCCESS;
4155 * ixgbe_get_fcoe_boot_status_generic - Get FCOE boot status from EEPROM
4156 * @hw: pointer to hardware structure
4157 * @bs: the fcoe boot status
4159 * This function will read the FCOE boot status from the iSCSI FCOE block
4161 s32 ixgbe_get_fcoe_boot_status_generic(struct ixgbe_hw *hw, u16 *bs)
4163 u16 offset, caps, flags;
4166 DEBUGFUNC("ixgbe_get_fcoe_boot_status_generic");
4168 /* clear output first */
4169 *bs = ixgbe_fcoe_bootstatus_unavailable;
4171 /* check if FCOE IBA block is present */
4172 offset = IXGBE_FCOE_IBA_CAPS_BLK_PTR;
4173 status = hw->eeprom.ops.read(hw, offset, &caps);
4174 if (status != IXGBE_SUCCESS)
4177 if (!(caps & IXGBE_FCOE_IBA_CAPS_FCOE))
4180 /* check if iSCSI FCOE block is populated */
4181 status = hw->eeprom.ops.read(hw, IXGBE_ISCSI_FCOE_BLK_PTR, &offset);
4182 if (status != IXGBE_SUCCESS)
4185 if ((offset == 0) || (offset == 0xFFFF))
4188 /* read fcoe flags in iSCSI FCOE block */
4189 offset = offset + IXGBE_ISCSI_FCOE_FLAGS_OFFSET;
4190 status = hw->eeprom.ops.read(hw, offset, &flags);
4191 if (status != IXGBE_SUCCESS)
4194 if (flags & IXGBE_ISCSI_FCOE_FLAGS_ENABLE)
4195 *bs = ixgbe_fcoe_bootstatus_enabled;
4197 *bs = ixgbe_fcoe_bootstatus_disabled;
4204 * ixgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing
4205 * @hw: pointer to hardware structure
4206 * @enable: enable or disable switch for MAC anti-spoofing
4207 * @vf: Virtual Function pool - VF Pool to set for MAC anti-spoofing
4210 void ixgbe_set_mac_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf)
4212 int vf_target_reg = vf >> 3;
4213 int vf_target_shift = vf % 8;
4216 if (hw->mac.type == ixgbe_mac_82598EB)
4219 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
4221 pfvfspoof |= (1 << vf_target_shift);
4223 pfvfspoof &= ~(1 << vf_target_shift);
4224 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
4228 * ixgbe_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing
4229 * @hw: pointer to hardware structure
4230 * @enable: enable or disable switch for VLAN anti-spoofing
4231 * @vf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing
4234 void ixgbe_set_vlan_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf)
4236 int vf_target_reg = vf >> 3;
4237 int vf_target_shift = vf % 8 + IXGBE_SPOOF_VLANAS_SHIFT;
4240 if (hw->mac.type == ixgbe_mac_82598EB)
4243 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
4245 pfvfspoof |= (1 << vf_target_shift);
4247 pfvfspoof &= ~(1 << vf_target_shift);
4248 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
4252 * ixgbe_get_device_caps_generic - Get additional device capabilities
4253 * @hw: pointer to hardware structure
4254 * @device_caps: the EEPROM word with the extra device capabilities
4256 * This function will read the EEPROM location for the device capabilities,
4257 * and return the word through device_caps.
4259 s32 ixgbe_get_device_caps_generic(struct ixgbe_hw *hw, u16 *device_caps)
4261 DEBUGFUNC("ixgbe_get_device_caps_generic");
4263 hw->eeprom.ops.read(hw, IXGBE_DEVICE_CAPS, device_caps);
4265 return IXGBE_SUCCESS;
4269 * ixgbe_enable_relaxed_ordering_gen2 - Enable relaxed ordering
4270 * @hw: pointer to hardware structure
4273 void ixgbe_enable_relaxed_ordering_gen2(struct ixgbe_hw *hw)
4278 DEBUGFUNC("ixgbe_enable_relaxed_ordering_gen2");
4280 /* Enable relaxed ordering */
4281 for (i = 0; i < hw->mac.max_tx_queues; i++) {
4282 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i));
4283 regval |= IXGBE_DCA_TXCTRL_DESC_WRO_EN;
4284 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval);
4287 for (i = 0; i < hw->mac.max_rx_queues; i++) {
4288 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
4289 regval |= IXGBE_DCA_RXCTRL_DATA_WRO_EN |
4290 IXGBE_DCA_RXCTRL_HEAD_WRO_EN;
4291 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
4297 * ixgbe_calculate_checksum - Calculate checksum for buffer
4298 * @buffer: pointer to EEPROM
4299 * @length: size of EEPROM to calculate a checksum for
4300 * Calculates the checksum for some buffer on a specified length. The
4301 * checksum calculated is returned.
4303 u8 ixgbe_calculate_checksum(u8 *buffer, u32 length)
4308 DEBUGFUNC("ixgbe_calculate_checksum");
4313 for (i = 0; i < length; i++)
4316 return (u8) (0 - sum);
4320 * ixgbe_host_interface_command - Issue command to manageability block
4321 * @hw: pointer to the HW structure
4322 * @buffer: contains the command to write and where the return status will
4324 * @length: length of buffer, must be multiple of 4 bytes
4325 * @timeout: time in ms to wait for command completion
4326 * @return_data: read and return data from the buffer (true) or not (false)
4327 * Needed because FW structures are big endian and decoding of
4328 * these fields can be 8 bit or 16 bit based on command. Decoding
4329 * is not easily understood without making a table of commands.
4330 * So we will leave this up to the caller to read back the data
4333 * Communicates with the manageability block. On success return IXGBE_SUCCESS
4334 * else returns semaphore error when encountering an error acquiring
4335 * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
4337 s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer,
4338 u32 length, u32 timeout, bool return_data)
4340 u32 hicr, i, bi, fwsts;
4341 u32 hdr_size = sizeof(struct ixgbe_hic_hdr);
4346 DEBUGFUNC("ixgbe_host_interface_command");
4348 if (length == 0 || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
4349 DEBUGOUT1("Buffer length failure buffersize=%d.\n", length);
4350 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
4352 /* Take management host interface semaphore */
4353 status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
4358 /* Set bit 9 of FWSTS clearing FW reset indication */
4359 fwsts = IXGBE_READ_REG(hw, IXGBE_FWSTS);
4360 IXGBE_WRITE_REG(hw, IXGBE_FWSTS, fwsts | IXGBE_FWSTS_FWRI);
4362 /* Check that the host interface is enabled. */
4363 hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
4364 if ((hicr & IXGBE_HICR_EN) == 0) {
4365 DEBUGOUT("IXGBE_HOST_EN bit disabled.\n");
4366 status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
4370 /* Calculate length in DWORDs. We must be DWORD aligned */
4371 if ((length % (sizeof(u32))) != 0) {
4372 DEBUGOUT("Buffer length failure, not aligned to dword");
4373 status = IXGBE_ERR_INVALID_ARGUMENT;
4377 dword_len = length >> 2;
4379 /* The device driver writes the relevant command block
4380 * into the ram area.
4382 for (i = 0; i < dword_len; i++)
4383 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_FLEX_MNG,
4384 i, IXGBE_CPU_TO_LE32(buffer[i]));
4386 /* Setting this bit tells the ARC that a new command is pending. */
4387 IXGBE_WRITE_REG(hw, IXGBE_HICR, hicr | IXGBE_HICR_C);
4389 for (i = 0; i < timeout; i++) {
4390 hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
4391 if (!(hicr & IXGBE_HICR_C))
4396 /* Check command completion */
4397 if ((timeout != 0 && i == timeout) ||
4398 !(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV)) {
4399 ERROR_REPORT1(IXGBE_ERROR_CAUTION,
4400 "Command has failed with no status valid.\n");
4401 status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
4408 /* Calculate length in DWORDs */
4409 dword_len = hdr_size >> 2;
4411 /* first pull in the header so we know the buffer length */
4412 for (bi = 0; bi < dword_len; bi++) {
4413 buffer[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi);
4414 IXGBE_LE32_TO_CPUS(&buffer[bi]);
4417 /* If there is any thing in data position pull it in */
4418 buf_len = ((struct ixgbe_hic_hdr *)buffer)->buf_len;
4422 if (length < buf_len + hdr_size) {
4423 DEBUGOUT("Buffer not large enough for reply message.\n");
4424 status = IXGBE_ERR_HOST_INTERFACE_COMMAND;
4428 /* Calculate length in DWORDs, add 3 for odd lengths */
4429 dword_len = (buf_len + 3) >> 2;
4431 /* Pull in the rest of the buffer (bi is where we left off) */
4432 for (; bi <= dword_len; bi++) {
4433 buffer[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi);
4434 IXGBE_LE32_TO_CPUS(&buffer[bi]);
4438 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
4444 * ixgbe_set_fw_drv_ver_generic - Sends driver version to firmware
4445 * @hw: pointer to the HW structure
4446 * @maj: driver version major number
4447 * @min: driver version minor number
4448 * @build: driver version build number
4449 * @sub: driver version sub build number
4451 * Sends driver version number to firmware through the manageability
4452 * block. On success return IXGBE_SUCCESS
4453 * else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
4454 * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
4456 s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min,
4459 struct ixgbe_hic_drv_info fw_cmd;
4461 s32 ret_val = IXGBE_SUCCESS;
4463 DEBUGFUNC("ixgbe_set_fw_drv_ver_generic");
4465 fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
4466 fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN;
4467 fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
4468 fw_cmd.port_num = (u8)hw->bus.func;
4469 fw_cmd.ver_maj = maj;
4470 fw_cmd.ver_min = min;
4471 fw_cmd.ver_build = build;
4472 fw_cmd.ver_sub = sub;
4473 fw_cmd.hdr.checksum = 0;
4474 fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
4475 (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
4479 for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
4480 ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd,
4482 IXGBE_HI_COMMAND_TIMEOUT,
4484 if (ret_val != IXGBE_SUCCESS)
4487 if (fw_cmd.hdr.cmd_or_resp.ret_status ==
4488 FW_CEM_RESP_STATUS_SUCCESS)
4489 ret_val = IXGBE_SUCCESS;
4491 ret_val = IXGBE_ERR_HOST_INTERFACE_COMMAND;
4500 * ixgbe_set_rxpba_generic - Initialize Rx packet buffer
4501 * @hw: pointer to hardware structure
4502 * @num_pb: number of packet buffers to allocate
4503 * @headroom: reserve n KB of headroom
4504 * @strategy: packet buffer allocation strategy
4506 void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw, int num_pb, u32 headroom,
4509 u32 pbsize = hw->mac.rx_pb_size;
4511 u32 rxpktsize, txpktsize, txpbthresh;
4513 /* Reserve headroom */
4519 /* Divide remaining packet buffer space amongst the number of packet
4520 * buffers requested using supplied strategy.
4523 case PBA_STRATEGY_WEIGHTED:
4524 /* ixgbe_dcb_pba_80_48 strategy weight first half of packet
4525 * buffer with 5/8 of the packet buffer space.
4527 rxpktsize = (pbsize * 5) / (num_pb * 4);
4528 pbsize -= rxpktsize * (num_pb / 2);
4529 rxpktsize <<= IXGBE_RXPBSIZE_SHIFT;
4530 for (; i < (num_pb / 2); i++)
4531 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
4532 /* Fall through to configure remaining packet buffers */
4533 case PBA_STRATEGY_EQUAL:
4534 rxpktsize = (pbsize / (num_pb - i)) << IXGBE_RXPBSIZE_SHIFT;
4535 for (; i < num_pb; i++)
4536 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
4542 /* Only support an equally distributed Tx packet buffer strategy. */
4543 txpktsize = IXGBE_TXPBSIZE_MAX / num_pb;
4544 txpbthresh = (txpktsize / 1024) - IXGBE_TXPKT_SIZE_MAX;
4545 for (i = 0; i < num_pb; i++) {
4546 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize);
4547 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh);
4550 /* Clear unused TCs, if any, to zero buffer size*/
4551 for (; i < IXGBE_MAX_PB; i++) {
4552 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
4553 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0);
4554 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0);
4559 * ixgbe_clear_tx_pending - Clear pending TX work from the PCIe fifo
4560 * @hw: pointer to the hardware structure
4562 * The 82599 and x540 MACs can experience issues if TX work is still pending
4563 * when a reset occurs. This function prevents this by flushing the PCIe
4564 * buffers on the system.
4566 void ixgbe_clear_tx_pending(struct ixgbe_hw *hw)
4568 u32 gcr_ext, hlreg0, i, poll;
4572 * If double reset is not requested then all transactions should
4573 * already be clear and as such there is no work to do
4575 if (!(hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED))
4579 * Set loopback enable to prevent any transmits from being sent
4580 * should the link come up. This assumes that the RXCTRL.RXEN bit
4581 * has already been cleared.
4583 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
4584 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0 | IXGBE_HLREG0_LPBK);
4586 /* Wait for a last completion before clearing buffers */
4587 IXGBE_WRITE_FLUSH(hw);
4591 * Before proceeding, make sure that the PCIe block does not have
4592 * transactions pending.
4594 poll = ixgbe_pcie_timeout_poll(hw);
4595 for (i = 0; i < poll; i++) {
4597 value = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_STATUS);
4598 if (IXGBE_REMOVED(hw->hw_addr))
4600 if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING))
4605 /* initiate cleaning flow for buffers in the PCIe transaction layer */
4606 gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
4607 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT,
4608 gcr_ext | IXGBE_GCR_EXT_BUFFERS_CLEAR);
4610 /* Flush all writes and allow 20usec for all transactions to clear */
4611 IXGBE_WRITE_FLUSH(hw);
4614 /* restore previous register values */
4615 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
4616 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
4619 STATIC const u8 ixgbe_emc_temp_data[4] = {
4620 IXGBE_EMC_INTERNAL_DATA,
4621 IXGBE_EMC_DIODE1_DATA,
4622 IXGBE_EMC_DIODE2_DATA,
4623 IXGBE_EMC_DIODE3_DATA
4625 STATIC const u8 ixgbe_emc_therm_limit[4] = {
4626 IXGBE_EMC_INTERNAL_THERM_LIMIT,
4627 IXGBE_EMC_DIODE1_THERM_LIMIT,
4628 IXGBE_EMC_DIODE2_THERM_LIMIT,
4629 IXGBE_EMC_DIODE3_THERM_LIMIT
4633 * ixgbe_get_thermal_sensor_data - Gathers thermal sensor data
4634 * @hw: pointer to hardware structure
4635 * @data: pointer to the thermal sensor data structure
4637 * Returns the thermal sensor data structure
4639 s32 ixgbe_get_thermal_sensor_data_generic(struct ixgbe_hw *hw)
4641 s32 status = IXGBE_SUCCESS;
4649 struct ixgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data;
4651 DEBUGFUNC("ixgbe_get_thermal_sensor_data_generic");
4653 /* Only support thermal sensors attached to 82599 physical port 0 */
4654 if ((hw->mac.type != ixgbe_mac_82599EB) ||
4655 (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)) {
4656 status = IXGBE_NOT_IMPLEMENTED;
4660 status = hw->eeprom.ops.read(hw, IXGBE_ETS_CFG, &ets_offset);
4664 if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) {
4665 status = IXGBE_NOT_IMPLEMENTED;
4669 status = hw->eeprom.ops.read(hw, ets_offset, &ets_cfg);
4673 if (((ets_cfg & IXGBE_ETS_TYPE_MASK) >> IXGBE_ETS_TYPE_SHIFT)
4674 != IXGBE_ETS_TYPE_EMC) {
4675 status = IXGBE_NOT_IMPLEMENTED;
4679 num_sensors = (ets_cfg & IXGBE_ETS_NUM_SENSORS_MASK);
4680 if (num_sensors > IXGBE_MAX_SENSORS)
4681 num_sensors = IXGBE_MAX_SENSORS;
4683 for (i = 0; i < num_sensors; i++) {
4684 status = hw->eeprom.ops.read(hw, (ets_offset + 1 + i),
4689 sensor_index = ((ets_sensor & IXGBE_ETS_DATA_INDEX_MASK) >>
4690 IXGBE_ETS_DATA_INDEX_SHIFT);
4691 sensor_location = ((ets_sensor & IXGBE_ETS_DATA_LOC_MASK) >>
4692 IXGBE_ETS_DATA_LOC_SHIFT);
4694 if (sensor_location != 0) {
4695 status = hw->phy.ops.read_i2c_byte(hw,
4696 ixgbe_emc_temp_data[sensor_index],
4697 IXGBE_I2C_THERMAL_SENSOR_ADDR,
4698 &data->sensor[i].temp);
4708 * ixgbe_init_thermal_sensor_thresh_generic - Inits thermal sensor thresholds
4709 * @hw: pointer to hardware structure
4711 * Inits the thermal sensor thresholds according to the NVM map
4712 * and save off the threshold and location values into mac.thermal_sensor_data
4714 s32 ixgbe_init_thermal_sensor_thresh_generic(struct ixgbe_hw *hw)
4716 s32 status = IXGBE_SUCCESS;
4721 u8 low_thresh_delta;
4727 struct ixgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data;
4729 DEBUGFUNC("ixgbe_init_thermal_sensor_thresh_generic");
4731 memset(data, 0, sizeof(struct ixgbe_thermal_sensor_data));
4733 /* Only support thermal sensors attached to 82599 physical port 0 */
4734 if ((hw->mac.type != ixgbe_mac_82599EB) ||
4735 (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1))
4736 return IXGBE_NOT_IMPLEMENTED;
4738 offset = IXGBE_ETS_CFG;
4739 if (hw->eeprom.ops.read(hw, offset, &ets_offset))
4741 if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF))
4742 return IXGBE_NOT_IMPLEMENTED;
4744 offset = ets_offset;
4745 if (hw->eeprom.ops.read(hw, offset, &ets_cfg))
4747 if (((ets_cfg & IXGBE_ETS_TYPE_MASK) >> IXGBE_ETS_TYPE_SHIFT)
4748 != IXGBE_ETS_TYPE_EMC)
4749 return IXGBE_NOT_IMPLEMENTED;
4751 low_thresh_delta = ((ets_cfg & IXGBE_ETS_LTHRES_DELTA_MASK) >>
4752 IXGBE_ETS_LTHRES_DELTA_SHIFT);
4753 num_sensors = (ets_cfg & IXGBE_ETS_NUM_SENSORS_MASK);
4755 for (i = 0; i < num_sensors; i++) {
4756 offset = ets_offset + 1 + i;
4757 if (hw->eeprom.ops.read(hw, offset, &ets_sensor)) {
4758 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
4759 "eeprom read at offset %d failed",
4763 sensor_index = ((ets_sensor & IXGBE_ETS_DATA_INDEX_MASK) >>
4764 IXGBE_ETS_DATA_INDEX_SHIFT);
4765 sensor_location = ((ets_sensor & IXGBE_ETS_DATA_LOC_MASK) >>
4766 IXGBE_ETS_DATA_LOC_SHIFT);
4767 therm_limit = ets_sensor & IXGBE_ETS_DATA_HTHRESH_MASK;
4769 hw->phy.ops.write_i2c_byte(hw,
4770 ixgbe_emc_therm_limit[sensor_index],
4771 IXGBE_I2C_THERMAL_SENSOR_ADDR, therm_limit);
4773 if ((i < IXGBE_MAX_SENSORS) && (sensor_location != 0)) {
4774 data->sensor[i].location = sensor_location;
4775 data->sensor[i].caution_thresh = therm_limit;
4776 data->sensor[i].max_op_thresh = therm_limit -
4783 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
4784 "eeprom read at offset %d failed", offset);
4785 return IXGBE_NOT_IMPLEMENTED;
4790 * ixgbe_dcb_get_rtrup2tc_generic - read rtrup2tc reg
4791 * @hw: pointer to hardware structure
4792 * @map: pointer to u8 arr for returning map
4794 * Read the rtrup2tc HW register and resolve its content into map
4796 void ixgbe_dcb_get_rtrup2tc_generic(struct ixgbe_hw *hw, u8 *map)
4800 reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
4801 for (i = 0; i < IXGBE_DCB_MAX_USER_PRIORITY; i++)
4802 map[i] = IXGBE_RTRUP2TC_UP_MASK &
4803 (reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT));
4807 void ixgbe_disable_rx_generic(struct ixgbe_hw *hw)
4812 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4813 if (rxctrl & IXGBE_RXCTRL_RXEN) {
4814 if (hw->mac.type != ixgbe_mac_82598EB) {
4815 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
4816 if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
4817 pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
4818 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
4819 hw->mac.set_lben = true;
4821 hw->mac.set_lben = false;
4824 rxctrl &= ~IXGBE_RXCTRL_RXEN;
4825 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
4829 void ixgbe_enable_rx_generic(struct ixgbe_hw *hw)
4834 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4835 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, (rxctrl | IXGBE_RXCTRL_RXEN));
4837 if (hw->mac.type != ixgbe_mac_82598EB) {
4838 if (hw->mac.set_lben) {
4839 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
4840 pfdtxgswc |= IXGBE_PFDTXGSWC_VT_LBEN;
4841 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
4842 hw->mac.set_lben = false;
4848 * ixgbe_mng_present - returns true when management capability is present
4849 * @hw: pointer to hardware structure
4851 bool ixgbe_mng_present(struct ixgbe_hw *hw)
4855 if (hw->mac.type < ixgbe_mac_82599EB)
4858 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM_BY_MAC(hw));
4859 fwsm &= IXGBE_FWSM_MODE_MASK;
4860 return fwsm == IXGBE_FWSM_FW_MODE_PT;
4864 * ixgbe_mng_enabled - Is the manageability engine enabled?
4865 * @hw: pointer to hardware structure
4867 * Returns true if the manageability engine is enabled.
4869 bool ixgbe_mng_enabled(struct ixgbe_hw *hw)
4871 u32 fwsm, manc, factps;
4873 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM_BY_MAC(hw));
4874 if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT)
4877 manc = IXGBE_READ_REG(hw, IXGBE_MANC);
4878 if (!(manc & IXGBE_MANC_RCV_TCO_EN))
4881 if (hw->mac.type <= ixgbe_mac_X540) {
4882 factps = IXGBE_READ_REG(hw, IXGBE_FACTPS_BY_MAC(hw));
4883 if (factps & IXGBE_FACTPS_MNGCG)
4891 * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
4892 * @hw: pointer to hardware structure
4893 * @speed: new link speed
4894 * @autoneg_wait_to_complete: true when waiting for completion is needed
4896 * Set the link speed in the MAC and/or PHY register and restarts link.
4898 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
4899 ixgbe_link_speed speed,
4900 bool autoneg_wait_to_complete)
4902 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
4903 ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN;
4904 s32 status = IXGBE_SUCCESS;
4907 bool autoneg, link_up = false;
4909 DEBUGFUNC("ixgbe_setup_mac_link_multispeed_fiber");
4911 /* Mask off requested but non-supported speeds */
4912 status = ixgbe_get_link_capabilities(hw, &link_speed, &autoneg);
4913 if (status != IXGBE_SUCCESS)
4916 speed &= link_speed;
4918 /* Try each speed one by one, highest priority first. We do this in
4919 * software because 10Gb fiber doesn't support speed autonegotiation.
4921 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
4923 highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
4925 /* If we already have link at this speed, just jump out */
4926 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
4927 if (status != IXGBE_SUCCESS)
4930 if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up)
4933 /* Set the module link speed */
4934 switch (hw->phy.media_type) {
4935 case ixgbe_media_type_fiber:
4936 ixgbe_set_rate_select_speed(hw,
4937 IXGBE_LINK_SPEED_10GB_FULL);
4939 case ixgbe_media_type_fiber_qsfp:
4940 /* QSFP module automatically detects MAC link speed */
4943 DEBUGOUT("Unexpected media type.\n");
4947 /* Allow module to change analog characteristics (1G->10G) */
4950 status = ixgbe_setup_mac_link(hw,
4951 IXGBE_LINK_SPEED_10GB_FULL,
4952 autoneg_wait_to_complete);
4953 if (status != IXGBE_SUCCESS)
4956 /* Flap the Tx laser if it has not already been done */
4957 ixgbe_flap_tx_laser(hw);
4959 /* Wait for the controller to acquire link. Per IEEE 802.3ap,
4960 * Section 73.10.2, we may have to wait up to 500ms if KR is
4961 * attempted. 82599 uses the same timing for 10g SFI.
4963 for (i = 0; i < 5; i++) {
4964 /* Wait for the link partner to also set speed */
4967 /* If we have link, just jump out */
4968 status = ixgbe_check_link(hw, &link_speed,
4970 if (status != IXGBE_SUCCESS)
4978 if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
4980 if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
4981 highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
4983 /* If we already have link at this speed, just jump out */
4984 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
4985 if (status != IXGBE_SUCCESS)
4988 if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up)
4991 /* Set the module link speed */
4992 switch (hw->phy.media_type) {
4993 case ixgbe_media_type_fiber:
4994 ixgbe_set_rate_select_speed(hw,
4995 IXGBE_LINK_SPEED_1GB_FULL);
4997 case ixgbe_media_type_fiber_qsfp:
4998 /* QSFP module automatically detects link speed */
5001 DEBUGOUT("Unexpected media type.\n");
5005 /* Allow module to change analog characteristics (10G->1G) */
5008 status = ixgbe_setup_mac_link(hw,
5009 IXGBE_LINK_SPEED_1GB_FULL,
5010 autoneg_wait_to_complete);
5011 if (status != IXGBE_SUCCESS)
5014 /* Flap the Tx laser if it has not already been done */
5015 ixgbe_flap_tx_laser(hw);
5017 /* Wait for the link partner to also set speed */
5020 /* If we have link, just jump out */
5021 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
5022 if (status != IXGBE_SUCCESS)
5029 /* We didn't get link. Configure back to the highest speed we tried,
5030 * (if there was more than one). We call ourselves back with just the
5031 * single highest speed that the user requested.
5034 status = ixgbe_setup_mac_link_multispeed_fiber(hw,
5036 autoneg_wait_to_complete);
5039 /* Set autoneg_advertised value based on input link speed */
5040 hw->phy.autoneg_advertised = 0;
5042 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
5043 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
5045 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
5046 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
5052 * ixgbe_set_soft_rate_select_speed - Set module link speed
5053 * @hw: pointer to hardware structure
5054 * @speed: link speed to set
5056 * Set module link speed via the soft rate select.
5058 void ixgbe_set_soft_rate_select_speed(struct ixgbe_hw *hw,
5059 ixgbe_link_speed speed)
5065 case IXGBE_LINK_SPEED_10GB_FULL:
5066 /* one bit mask same as setting on */
5067 rs = IXGBE_SFF_SOFT_RS_SELECT_10G;
5069 case IXGBE_LINK_SPEED_1GB_FULL:
5070 rs = IXGBE_SFF_SOFT_RS_SELECT_1G;
5073 DEBUGOUT("Invalid fixed module speed\n");
5078 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
5079 IXGBE_I2C_EEPROM_DEV_ADDR2,
5082 DEBUGOUT("Failed to read Rx Rate Select RS0\n");
5086 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs;
5088 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
5089 IXGBE_I2C_EEPROM_DEV_ADDR2,
5092 DEBUGOUT("Failed to write Rx Rate Select RS0\n");
5097 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
5098 IXGBE_I2C_EEPROM_DEV_ADDR2,
5101 DEBUGOUT("Failed to read Rx Rate Select RS1\n");
5105 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs;
5107 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
5108 IXGBE_I2C_EEPROM_DEV_ADDR2,
5111 DEBUGOUT("Failed to write Rx Rate Select RS1\n");