1 /******************************************************************************
3 Copyright (c) 2001-2014, 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 ******************************************************************************/
35 #include "ixgbe_common.h"
36 #include "ixgbe_phy.h"
37 #include "ixgbe_dcb.h"
38 #include "ixgbe_dcb_82599.h"
39 #include "ixgbe_api.h"
41 static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw);
42 static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw);
43 static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw);
44 static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw);
45 static void ixgbe_standby_eeprom(struct ixgbe_hw *hw);
46 static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
48 static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count);
49 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
50 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
51 static void ixgbe_release_eeprom(struct ixgbe_hw *hw);
53 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
54 static s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw,
56 static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
57 u16 words, u16 *data);
58 static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
59 u16 words, u16 *data);
60 static s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw,
64 * ixgbe_init_ops_generic - Inits function ptrs
65 * @hw: pointer to the hardware structure
67 * Initialize the function pointers.
69 s32 ixgbe_init_ops_generic(struct ixgbe_hw *hw)
71 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
72 struct ixgbe_mac_info *mac = &hw->mac;
73 u32 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
75 DEBUGFUNC("ixgbe_init_ops_generic");
78 eeprom->ops.init_params = ixgbe_init_eeprom_params_generic;
79 /* If EEPROM is valid (bit 8 = 1), use EERD otherwise use bit bang */
80 if (eec & IXGBE_EEC_PRES) {
81 eeprom->ops.read = ixgbe_read_eerd_generic;
82 eeprom->ops.read_buffer = ixgbe_read_eerd_buffer_generic;
84 eeprom->ops.read = ixgbe_read_eeprom_bit_bang_generic;
85 eeprom->ops.read_buffer =
86 ixgbe_read_eeprom_buffer_bit_bang_generic;
88 eeprom->ops.write = ixgbe_write_eeprom_generic;
89 eeprom->ops.write_buffer = ixgbe_write_eeprom_buffer_bit_bang_generic;
90 eeprom->ops.validate_checksum =
91 ixgbe_validate_eeprom_checksum_generic;
92 eeprom->ops.update_checksum = ixgbe_update_eeprom_checksum_generic;
93 eeprom->ops.calc_checksum = ixgbe_calc_eeprom_checksum_generic;
96 mac->ops.init_hw = ixgbe_init_hw_generic;
97 mac->ops.reset_hw = NULL;
98 mac->ops.start_hw = ixgbe_start_hw_generic;
99 mac->ops.clear_hw_cntrs = ixgbe_clear_hw_cntrs_generic;
100 mac->ops.get_media_type = NULL;
101 mac->ops.get_supported_physical_layer = NULL;
102 mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_generic;
103 mac->ops.get_mac_addr = ixgbe_get_mac_addr_generic;
104 mac->ops.stop_adapter = ixgbe_stop_adapter_generic;
105 mac->ops.get_bus_info = ixgbe_get_bus_info_generic;
106 mac->ops.set_lan_id = ixgbe_set_lan_id_multi_port_pcie;
107 mac->ops.acquire_swfw_sync = ixgbe_acquire_swfw_sync;
108 mac->ops.release_swfw_sync = ixgbe_release_swfw_sync;
109 mac->ops.prot_autoc_read = prot_autoc_read_generic;
110 mac->ops.prot_autoc_write = prot_autoc_write_generic;
113 mac->ops.led_on = ixgbe_led_on_generic;
114 mac->ops.led_off = ixgbe_led_off_generic;
115 mac->ops.blink_led_start = ixgbe_blink_led_start_generic;
116 mac->ops.blink_led_stop = ixgbe_blink_led_stop_generic;
118 /* RAR, Multicast, VLAN */
119 mac->ops.set_rar = ixgbe_set_rar_generic;
120 mac->ops.clear_rar = ixgbe_clear_rar_generic;
121 mac->ops.insert_mac_addr = NULL;
122 mac->ops.set_vmdq = NULL;
123 mac->ops.clear_vmdq = NULL;
124 mac->ops.init_rx_addrs = ixgbe_init_rx_addrs_generic;
125 mac->ops.update_uc_addr_list = ixgbe_update_uc_addr_list_generic;
126 mac->ops.update_mc_addr_list = ixgbe_update_mc_addr_list_generic;
127 mac->ops.enable_mc = ixgbe_enable_mc_generic;
128 mac->ops.disable_mc = ixgbe_disable_mc_generic;
129 mac->ops.clear_vfta = NULL;
130 mac->ops.set_vfta = NULL;
131 mac->ops.set_vlvf = NULL;
132 mac->ops.init_uta_tables = NULL;
133 mac->ops.enable_rx = ixgbe_enable_rx_generic;
134 mac->ops.disable_rx = ixgbe_disable_rx_generic;
137 mac->ops.fc_enable = ixgbe_fc_enable_generic;
138 mac->ops.setup_fc = ixgbe_setup_fc_generic;
141 mac->ops.get_link_capabilities = NULL;
142 mac->ops.setup_link = NULL;
143 mac->ops.check_link = NULL;
144 mac->ops.dmac_config = NULL;
145 mac->ops.dmac_update_tcs = NULL;
146 mac->ops.dmac_config_tcs = NULL;
148 return IXGBE_SUCCESS;
152 * ixgbe_device_supports_autoneg_fc - Check if device supports autonegotiation
154 * @hw: pointer to hardware structure
156 * This function returns TRUE if the device supports flow control
157 * autonegotiation, and FALSE if it does not.
160 bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
162 bool supported = FALSE;
163 ixgbe_link_speed speed;
166 DEBUGFUNC("ixgbe_device_supports_autoneg_fc");
168 switch (hw->phy.media_type) {
169 case ixgbe_media_type_fiber_fixed:
170 case ixgbe_media_type_fiber_qsfp:
171 case ixgbe_media_type_fiber:
172 hw->mac.ops.check_link(hw, &speed, &link_up, FALSE);
173 /* if link is down, assume supported */
175 supported = speed == IXGBE_LINK_SPEED_1GB_FULL ?
180 case ixgbe_media_type_backplane:
183 case ixgbe_media_type_copper:
184 /* only some copper devices support flow control autoneg */
185 switch (hw->device_id) {
186 case IXGBE_DEV_ID_82599_T3_LOM:
187 case IXGBE_DEV_ID_X540T:
188 case IXGBE_DEV_ID_X540T1:
189 case IXGBE_DEV_ID_X540_BYPASS:
190 case IXGBE_DEV_ID_X550T:
200 ERROR_REPORT2(IXGBE_ERROR_UNSUPPORTED,
201 "Device %x does not support flow control autoneg",
207 * ixgbe_setup_fc_generic - Set up flow control
208 * @hw: pointer to hardware structure
210 * Called at init time to set up flow control.
212 s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
214 s32 ret_val = IXGBE_SUCCESS;
215 u32 reg = 0, reg_bp = 0;
219 DEBUGFUNC("ixgbe_setup_fc_generic");
221 /* Validate the requested mode */
222 if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) {
223 ERROR_REPORT1(IXGBE_ERROR_UNSUPPORTED,
224 "ixgbe_fc_rx_pause not valid in strict IEEE mode\n");
225 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
230 * 10gig parts do not have a word in the EEPROM to determine the
231 * default flow control setting, so we explicitly set it to full.
233 if (hw->fc.requested_mode == ixgbe_fc_default)
234 hw->fc.requested_mode = ixgbe_fc_full;
237 * Set up the 1G and 10G flow control advertisement registers so the
238 * HW will be able to do fc autoneg once the cable is plugged in. If
239 * we link at 10G, the 1G advertisement is harmless and vice versa.
241 switch (hw->phy.media_type) {
242 case ixgbe_media_type_backplane:
243 /* some MAC's need RMW protection on AUTOC */
244 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, ®_bp);
245 if (ret_val != IXGBE_SUCCESS)
248 /* only backplane uses autoc so fall though */
249 case ixgbe_media_type_fiber_fixed:
250 case ixgbe_media_type_fiber_qsfp:
251 case ixgbe_media_type_fiber:
252 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
255 case ixgbe_media_type_copper:
256 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT,
257 IXGBE_MDIO_AUTO_NEG_DEV_TYPE, ®_cu);
264 * The possible values of fc.requested_mode are:
265 * 0: Flow control is completely disabled
266 * 1: Rx flow control is enabled (we can receive pause frames,
267 * but not send pause frames).
268 * 2: Tx flow control is enabled (we can send pause frames but
269 * we do not support receiving pause frames).
270 * 3: Both Rx and Tx flow control (symmetric) are enabled.
273 switch (hw->fc.requested_mode) {
275 /* Flow control completely disabled by software override. */
276 reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE);
277 if (hw->phy.media_type == ixgbe_media_type_backplane)
278 reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE |
279 IXGBE_AUTOC_ASM_PAUSE);
280 else if (hw->phy.media_type == ixgbe_media_type_copper)
281 reg_cu &= ~(IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE);
283 case ixgbe_fc_tx_pause:
285 * Tx Flow control is enabled, and Rx Flow control is
286 * disabled by software override.
288 reg |= IXGBE_PCS1GANA_ASM_PAUSE;
289 reg &= ~IXGBE_PCS1GANA_SYM_PAUSE;
290 if (hw->phy.media_type == ixgbe_media_type_backplane) {
291 reg_bp |= IXGBE_AUTOC_ASM_PAUSE;
292 reg_bp &= ~IXGBE_AUTOC_SYM_PAUSE;
293 } else if (hw->phy.media_type == ixgbe_media_type_copper) {
294 reg_cu |= IXGBE_TAF_ASM_PAUSE;
295 reg_cu &= ~IXGBE_TAF_SYM_PAUSE;
298 case ixgbe_fc_rx_pause:
300 * Rx Flow control is enabled and Tx Flow control is
301 * disabled by software override. Since there really
302 * isn't a way to advertise that we are capable of RX
303 * Pause ONLY, we will advertise that we support both
304 * symmetric and asymmetric Rx PAUSE, as such we fall
305 * through to the fc_full statement. Later, we will
306 * disable the adapter's ability to send PAUSE frames.
309 /* Flow control (both Rx and Tx) is enabled by SW override. */
310 reg |= IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE;
311 if (hw->phy.media_type == ixgbe_media_type_backplane)
312 reg_bp |= IXGBE_AUTOC_SYM_PAUSE |
313 IXGBE_AUTOC_ASM_PAUSE;
314 else if (hw->phy.media_type == ixgbe_media_type_copper)
315 reg_cu |= IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE;
318 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT,
319 "Flow control param set incorrectly\n");
320 ret_val = IXGBE_ERR_CONFIG;
325 if (hw->mac.type < ixgbe_mac_X540) {
327 * Enable auto-negotiation between the MAC & PHY;
328 * the MAC will advertise clause 37 flow control.
330 IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg);
331 reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
333 /* Disable AN timeout */
334 if (hw->fc.strict_ieee)
335 reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN;
337 IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg);
338 DEBUGOUT1("Set up FC; PCS1GLCTL = 0x%08X\n", reg);
342 * AUTOC restart handles negotiation of 1G and 10G on backplane
343 * and copper. There is no need to set the PCS1GCTL register.
346 if (hw->phy.media_type == ixgbe_media_type_backplane) {
347 reg_bp |= IXGBE_AUTOC_AN_RESTART;
348 ret_val = hw->mac.ops.prot_autoc_write(hw, reg_bp, locked);
351 } else if ((hw->phy.media_type == ixgbe_media_type_copper) &&
352 (ixgbe_device_supports_autoneg_fc(hw))) {
353 hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT,
354 IXGBE_MDIO_AUTO_NEG_DEV_TYPE, reg_cu);
357 DEBUGOUT1("Set up FC; PCS1GLCTL = 0x%08X\n", reg);
363 * ixgbe_start_hw_generic - Prepare hardware for Tx/Rx
364 * @hw: pointer to hardware structure
366 * Starts the hardware by filling the bus info structure and media type, clears
367 * all on chip counters, initializes receive address registers, multicast
368 * table, VLAN filter table, calls routine to set up link and flow control
369 * settings, and leaves transmit and receive units disabled and uninitialized
371 s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
376 DEBUGFUNC("ixgbe_start_hw_generic");
378 /* Set the media type */
379 hw->phy.media_type = hw->mac.ops.get_media_type(hw);
381 /* PHY ops initialization must be done in reset_hw() */
383 /* Clear the VLAN filter table */
384 hw->mac.ops.clear_vfta(hw);
386 /* Clear statistics registers */
387 hw->mac.ops.clear_hw_cntrs(hw);
389 /* Set No Snoop Disable */
390 ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
391 ctrl_ext |= IXGBE_CTRL_EXT_NS_DIS;
392 IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
393 IXGBE_WRITE_FLUSH(hw);
395 /* Setup flow control */
396 ret_val = ixgbe_setup_fc(hw);
397 if (ret_val != IXGBE_SUCCESS)
400 /* Clear adapter stopped flag */
401 hw->adapter_stopped = FALSE;
408 * ixgbe_start_hw_gen2 - Init sequence for common device family
409 * @hw: pointer to hw structure
411 * Performs the init sequence common to the second generation
413 * Devices in the second generation:
417 s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw)
422 /* Clear the rate limiters */
423 for (i = 0; i < hw->mac.max_tx_queues; i++) {
424 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i);
425 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0);
427 IXGBE_WRITE_FLUSH(hw);
429 /* Disable relaxed ordering */
430 for (i = 0; i < hw->mac.max_tx_queues; i++) {
431 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i));
432 regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
433 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval);
436 for (i = 0; i < hw->mac.max_rx_queues; i++) {
437 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
438 regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
439 IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
440 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
443 return IXGBE_SUCCESS;
447 * ixgbe_init_hw_generic - Generic hardware initialization
448 * @hw: pointer to hardware structure
450 * Initialize the hardware by resetting the hardware, filling the bus info
451 * structure and media type, clears all on chip counters, initializes receive
452 * address registers, multicast table, VLAN filter table, calls routine to set
453 * up link and flow control settings, and leaves transmit and receive units
454 * disabled and uninitialized
456 s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw)
460 DEBUGFUNC("ixgbe_init_hw_generic");
462 /* Reset the hardware */
463 status = hw->mac.ops.reset_hw(hw);
465 if (status == IXGBE_SUCCESS) {
467 status = hw->mac.ops.start_hw(hw);
474 * ixgbe_clear_hw_cntrs_generic - Generic clear hardware counters
475 * @hw: pointer to hardware structure
477 * Clears all hardware statistics counters by reading them from the hardware
478 * Statistics counters are clear on read.
480 s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
484 DEBUGFUNC("ixgbe_clear_hw_cntrs_generic");
486 IXGBE_READ_REG(hw, IXGBE_CRCERRS);
487 IXGBE_READ_REG(hw, IXGBE_ILLERRC);
488 IXGBE_READ_REG(hw, IXGBE_ERRBC);
489 IXGBE_READ_REG(hw, IXGBE_MSPDC);
490 for (i = 0; i < 8; i++)
491 IXGBE_READ_REG(hw, IXGBE_MPC(i));
493 IXGBE_READ_REG(hw, IXGBE_MLFC);
494 IXGBE_READ_REG(hw, IXGBE_MRFC);
495 IXGBE_READ_REG(hw, IXGBE_RLEC);
496 IXGBE_READ_REG(hw, IXGBE_LXONTXC);
497 IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
498 if (hw->mac.type >= ixgbe_mac_82599EB) {
499 IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
500 IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
502 IXGBE_READ_REG(hw, IXGBE_LXONRXC);
503 IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
506 for (i = 0; i < 8; i++) {
507 IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
508 IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
509 if (hw->mac.type >= ixgbe_mac_82599EB) {
510 IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i));
511 IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i));
513 IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
514 IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
517 if (hw->mac.type >= ixgbe_mac_82599EB)
518 for (i = 0; i < 8; i++)
519 IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i));
520 IXGBE_READ_REG(hw, IXGBE_PRC64);
521 IXGBE_READ_REG(hw, IXGBE_PRC127);
522 IXGBE_READ_REG(hw, IXGBE_PRC255);
523 IXGBE_READ_REG(hw, IXGBE_PRC511);
524 IXGBE_READ_REG(hw, IXGBE_PRC1023);
525 IXGBE_READ_REG(hw, IXGBE_PRC1522);
526 IXGBE_READ_REG(hw, IXGBE_GPRC);
527 IXGBE_READ_REG(hw, IXGBE_BPRC);
528 IXGBE_READ_REG(hw, IXGBE_MPRC);
529 IXGBE_READ_REG(hw, IXGBE_GPTC);
530 IXGBE_READ_REG(hw, IXGBE_GORCL);
531 IXGBE_READ_REG(hw, IXGBE_GORCH);
532 IXGBE_READ_REG(hw, IXGBE_GOTCL);
533 IXGBE_READ_REG(hw, IXGBE_GOTCH);
534 if (hw->mac.type == ixgbe_mac_82598EB)
535 for (i = 0; i < 8; i++)
536 IXGBE_READ_REG(hw, IXGBE_RNBC(i));
537 IXGBE_READ_REG(hw, IXGBE_RUC);
538 IXGBE_READ_REG(hw, IXGBE_RFC);
539 IXGBE_READ_REG(hw, IXGBE_ROC);
540 IXGBE_READ_REG(hw, IXGBE_RJC);
541 IXGBE_READ_REG(hw, IXGBE_MNGPRC);
542 IXGBE_READ_REG(hw, IXGBE_MNGPDC);
543 IXGBE_READ_REG(hw, IXGBE_MNGPTC);
544 IXGBE_READ_REG(hw, IXGBE_TORL);
545 IXGBE_READ_REG(hw, IXGBE_TORH);
546 IXGBE_READ_REG(hw, IXGBE_TPR);
547 IXGBE_READ_REG(hw, IXGBE_TPT);
548 IXGBE_READ_REG(hw, IXGBE_PTC64);
549 IXGBE_READ_REG(hw, IXGBE_PTC127);
550 IXGBE_READ_REG(hw, IXGBE_PTC255);
551 IXGBE_READ_REG(hw, IXGBE_PTC511);
552 IXGBE_READ_REG(hw, IXGBE_PTC1023);
553 IXGBE_READ_REG(hw, IXGBE_PTC1522);
554 IXGBE_READ_REG(hw, IXGBE_MPTC);
555 IXGBE_READ_REG(hw, IXGBE_BPTC);
556 for (i = 0; i < 16; i++) {
557 IXGBE_READ_REG(hw, IXGBE_QPRC(i));
558 IXGBE_READ_REG(hw, IXGBE_QPTC(i));
559 if (hw->mac.type >= ixgbe_mac_82599EB) {
560 IXGBE_READ_REG(hw, IXGBE_QBRC_L(i));
561 IXGBE_READ_REG(hw, IXGBE_QBRC_H(i));
562 IXGBE_READ_REG(hw, IXGBE_QBTC_L(i));
563 IXGBE_READ_REG(hw, IXGBE_QBTC_H(i));
564 IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
566 IXGBE_READ_REG(hw, IXGBE_QBRC(i));
567 IXGBE_READ_REG(hw, IXGBE_QBTC(i));
571 if (hw->mac.type == ixgbe_mac_X550 || hw->mac.type == ixgbe_mac_X540) {
573 ixgbe_identify_phy(hw);
574 hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECL,
575 IXGBE_MDIO_PCS_DEV_TYPE, &i);
576 hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECH,
577 IXGBE_MDIO_PCS_DEV_TYPE, &i);
578 hw->phy.ops.read_reg(hw, IXGBE_LDPCECL,
579 IXGBE_MDIO_PCS_DEV_TYPE, &i);
580 hw->phy.ops.read_reg(hw, IXGBE_LDPCECH,
581 IXGBE_MDIO_PCS_DEV_TYPE, &i);
584 return IXGBE_SUCCESS;
588 * ixgbe_read_pba_string_generic - Reads part number string from EEPROM
589 * @hw: pointer to hardware structure
590 * @pba_num: stores the part number string from the EEPROM
591 * @pba_num_size: part number string buffer length
593 * Reads the part number string from the EEPROM.
595 s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num,
604 DEBUGFUNC("ixgbe_read_pba_string_generic");
606 if (pba_num == NULL) {
607 DEBUGOUT("PBA string buffer was null\n");
608 return IXGBE_ERR_INVALID_ARGUMENT;
611 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
613 DEBUGOUT("NVM Read Error\n");
617 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &pba_ptr);
619 DEBUGOUT("NVM Read Error\n");
624 * if data is not ptr guard the PBA must be in legacy format which
625 * means pba_ptr is actually our second data word for the PBA number
626 * and we can decode it into an ascii string
628 if (data != IXGBE_PBANUM_PTR_GUARD) {
629 DEBUGOUT("NVM PBA number is not stored as string\n");
631 /* we will need 11 characters to store the PBA */
632 if (pba_num_size < 11) {
633 DEBUGOUT("PBA string buffer too small\n");
634 return IXGBE_ERR_NO_SPACE;
637 /* extract hex string from data and pba_ptr */
638 pba_num[0] = (data >> 12) & 0xF;
639 pba_num[1] = (data >> 8) & 0xF;
640 pba_num[2] = (data >> 4) & 0xF;
641 pba_num[3] = data & 0xF;
642 pba_num[4] = (pba_ptr >> 12) & 0xF;
643 pba_num[5] = (pba_ptr >> 8) & 0xF;
646 pba_num[8] = (pba_ptr >> 4) & 0xF;
647 pba_num[9] = pba_ptr & 0xF;
649 /* put a null character on the end of our string */
652 /* switch all the data but the '-' to hex char */
653 for (offset = 0; offset < 10; offset++) {
654 if (pba_num[offset] < 0xA)
655 pba_num[offset] += '0';
656 else if (pba_num[offset] < 0x10)
657 pba_num[offset] += 'A' - 0xA;
660 return IXGBE_SUCCESS;
663 ret_val = hw->eeprom.ops.read(hw, pba_ptr, &length);
665 DEBUGOUT("NVM Read Error\n");
669 if (length == 0xFFFF || length == 0) {
670 DEBUGOUT("NVM PBA number section invalid length\n");
671 return IXGBE_ERR_PBA_SECTION;
674 /* check if pba_num buffer is big enough */
675 if (pba_num_size < (((u32)length * 2) - 1)) {
676 DEBUGOUT("PBA string buffer too small\n");
677 return IXGBE_ERR_NO_SPACE;
680 /* trim pba length from start of string */
684 for (offset = 0; offset < length; offset++) {
685 ret_val = hw->eeprom.ops.read(hw, pba_ptr + offset, &data);
687 DEBUGOUT("NVM Read Error\n");
690 pba_num[offset * 2] = (u8)(data >> 8);
691 pba_num[(offset * 2) + 1] = (u8)(data & 0xFF);
693 pba_num[offset * 2] = '\0';
695 return IXGBE_SUCCESS;
699 * ixgbe_read_pba_num_generic - Reads part number from EEPROM
700 * @hw: pointer to hardware structure
701 * @pba_num: stores the part number from the EEPROM
703 * Reads the part number from the EEPROM.
705 s32 ixgbe_read_pba_num_generic(struct ixgbe_hw *hw, u32 *pba_num)
710 DEBUGFUNC("ixgbe_read_pba_num_generic");
712 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data);
714 DEBUGOUT("NVM Read Error\n");
716 } else if (data == IXGBE_PBANUM_PTR_GUARD) {
717 DEBUGOUT("NVM Not supported\n");
718 return IXGBE_NOT_IMPLEMENTED;
720 *pba_num = (u32)(data << 16);
722 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &data);
724 DEBUGOUT("NVM Read Error\n");
729 return IXGBE_SUCCESS;
734 * @hw: pointer to the HW structure
735 * @eeprom_buf: optional pointer to EEPROM image
736 * @eeprom_buf_size: size of EEPROM image in words
737 * @max_pba_block_size: PBA block size limit
738 * @pba: pointer to output PBA structure
740 * Reads PBA from EEPROM image when eeprom_buf is not NULL.
741 * Reads PBA from physical EEPROM device when eeprom_buf is NULL.
744 s32 ixgbe_read_pba_raw(struct ixgbe_hw *hw, u16 *eeprom_buf,
745 u32 eeprom_buf_size, u16 max_pba_block_size,
746 struct ixgbe_pba *pba)
752 return IXGBE_ERR_PARAM;
754 if (eeprom_buf == NULL) {
755 ret_val = hw->eeprom.ops.read_buffer(hw, IXGBE_PBANUM0_PTR, 2,
760 if (eeprom_buf_size > IXGBE_PBANUM1_PTR) {
761 pba->word[0] = eeprom_buf[IXGBE_PBANUM0_PTR];
762 pba->word[1] = eeprom_buf[IXGBE_PBANUM1_PTR];
764 return IXGBE_ERR_PARAM;
768 if (pba->word[0] == IXGBE_PBANUM_PTR_GUARD) {
769 if (pba->pba_block == NULL)
770 return IXGBE_ERR_PARAM;
772 ret_val = ixgbe_get_pba_block_size(hw, eeprom_buf,
778 if (pba_block_size > max_pba_block_size)
779 return IXGBE_ERR_PARAM;
781 if (eeprom_buf == NULL) {
782 ret_val = hw->eeprom.ops.read_buffer(hw, pba->word[1],
788 if (eeprom_buf_size > (u32)(pba->word[1] +
790 memcpy(pba->pba_block,
791 &eeprom_buf[pba->word[1]],
792 pba_block_size * sizeof(u16));
794 return IXGBE_ERR_PARAM;
799 return IXGBE_SUCCESS;
803 * ixgbe_write_pba_raw
804 * @hw: pointer to the HW structure
805 * @eeprom_buf: optional pointer to EEPROM image
806 * @eeprom_buf_size: size of EEPROM image in words
807 * @pba: pointer to PBA structure
809 * Writes PBA to EEPROM image when eeprom_buf is not NULL.
810 * Writes PBA to physical EEPROM device when eeprom_buf is NULL.
813 s32 ixgbe_write_pba_raw(struct ixgbe_hw *hw, u16 *eeprom_buf,
814 u32 eeprom_buf_size, struct ixgbe_pba *pba)
819 return IXGBE_ERR_PARAM;
821 if (eeprom_buf == NULL) {
822 ret_val = hw->eeprom.ops.write_buffer(hw, IXGBE_PBANUM0_PTR, 2,
827 if (eeprom_buf_size > IXGBE_PBANUM1_PTR) {
828 eeprom_buf[IXGBE_PBANUM0_PTR] = pba->word[0];
829 eeprom_buf[IXGBE_PBANUM1_PTR] = pba->word[1];
831 return IXGBE_ERR_PARAM;
835 if (pba->word[0] == IXGBE_PBANUM_PTR_GUARD) {
836 if (pba->pba_block == NULL)
837 return IXGBE_ERR_PARAM;
839 if (eeprom_buf == NULL) {
840 ret_val = hw->eeprom.ops.write_buffer(hw, pba->word[1],
846 if (eeprom_buf_size > (u32)(pba->word[1] +
847 pba->pba_block[0])) {
848 memcpy(&eeprom_buf[pba->word[1]],
850 pba->pba_block[0] * sizeof(u16));
852 return IXGBE_ERR_PARAM;
857 return IXGBE_SUCCESS;
861 * ixgbe_get_pba_block_size
862 * @hw: pointer to the HW structure
863 * @eeprom_buf: optional pointer to EEPROM image
864 * @eeprom_buf_size: size of EEPROM image in words
865 * @pba_data_size: pointer to output variable
867 * Returns the size of the PBA block in words. Function operates on EEPROM
868 * image if the eeprom_buf pointer is not NULL otherwise it accesses physical
872 s32 ixgbe_get_pba_block_size(struct ixgbe_hw *hw, u16 *eeprom_buf,
873 u32 eeprom_buf_size, u16 *pba_block_size)
879 DEBUGFUNC("ixgbe_get_pba_block_size");
881 if (eeprom_buf == NULL) {
882 ret_val = hw->eeprom.ops.read_buffer(hw, IXGBE_PBANUM0_PTR, 2,
887 if (eeprom_buf_size > IXGBE_PBANUM1_PTR) {
888 pba_word[0] = eeprom_buf[IXGBE_PBANUM0_PTR];
889 pba_word[1] = eeprom_buf[IXGBE_PBANUM1_PTR];
891 return IXGBE_ERR_PARAM;
895 if (pba_word[0] == IXGBE_PBANUM_PTR_GUARD) {
896 if (eeprom_buf == NULL) {
897 ret_val = hw->eeprom.ops.read(hw, pba_word[1] + 0,
902 if (eeprom_buf_size > pba_word[1])
903 length = eeprom_buf[pba_word[1] + 0];
905 return IXGBE_ERR_PARAM;
908 if (length == 0xFFFF || length == 0)
909 return IXGBE_ERR_PBA_SECTION;
911 /* PBA number in legacy format, there is no PBA Block. */
915 if (pba_block_size != NULL)
916 *pba_block_size = length;
918 return IXGBE_SUCCESS;
922 * ixgbe_get_mac_addr_generic - Generic get MAC address
923 * @hw: pointer to hardware structure
924 * @mac_addr: Adapter MAC address
926 * Reads the adapter's MAC address from first Receive Address Register (RAR0)
927 * A reset of the adapter must be performed prior to calling this function
928 * in order for the MAC address to have been loaded from the EEPROM into RAR0
930 s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr)
936 DEBUGFUNC("ixgbe_get_mac_addr_generic");
938 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(0));
939 rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(0));
941 for (i = 0; i < 4; i++)
942 mac_addr[i] = (u8)(rar_low >> (i*8));
944 for (i = 0; i < 2; i++)
945 mac_addr[i+4] = (u8)(rar_high >> (i*8));
947 return IXGBE_SUCCESS;
951 * ixgbe_set_pci_config_data_generic - Generic store PCI bus info
952 * @hw: pointer to hardware structure
953 * @link_status: the link status returned by the PCI config space
955 * Stores the PCI bus info (speed, width, type) within the ixgbe_hw structure
957 void ixgbe_set_pci_config_data_generic(struct ixgbe_hw *hw, u16 link_status)
959 struct ixgbe_mac_info *mac = &hw->mac;
961 if (hw->bus.type == ixgbe_bus_type_unknown)
962 hw->bus.type = ixgbe_bus_type_pci_express;
964 switch (link_status & IXGBE_PCI_LINK_WIDTH) {
965 case IXGBE_PCI_LINK_WIDTH_1:
966 hw->bus.width = ixgbe_bus_width_pcie_x1;
968 case IXGBE_PCI_LINK_WIDTH_2:
969 hw->bus.width = ixgbe_bus_width_pcie_x2;
971 case IXGBE_PCI_LINK_WIDTH_4:
972 hw->bus.width = ixgbe_bus_width_pcie_x4;
974 case IXGBE_PCI_LINK_WIDTH_8:
975 hw->bus.width = ixgbe_bus_width_pcie_x8;
978 hw->bus.width = ixgbe_bus_width_unknown;
982 switch (link_status & IXGBE_PCI_LINK_SPEED) {
983 case IXGBE_PCI_LINK_SPEED_2500:
984 hw->bus.speed = ixgbe_bus_speed_2500;
986 case IXGBE_PCI_LINK_SPEED_5000:
987 hw->bus.speed = ixgbe_bus_speed_5000;
989 case IXGBE_PCI_LINK_SPEED_8000:
990 hw->bus.speed = ixgbe_bus_speed_8000;
993 hw->bus.speed = ixgbe_bus_speed_unknown;
997 mac->ops.set_lan_id(hw);
1001 * ixgbe_get_bus_info_generic - Generic set PCI bus info
1002 * @hw: pointer to hardware structure
1004 * Gets the PCI bus info (speed, width, type) then calls helper function to
1005 * store this data within the ixgbe_hw structure.
1007 s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw)
1011 DEBUGFUNC("ixgbe_get_bus_info_generic");
1013 /* Get the negotiated link width and speed from PCI config space */
1014 link_status = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_LINK_STATUS);
1016 ixgbe_set_pci_config_data_generic(hw, link_status);
1018 return IXGBE_SUCCESS;
1022 * ixgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices
1023 * @hw: pointer to the HW structure
1025 * Determines the LAN function id by reading memory-mapped registers
1026 * and swaps the port value if requested.
1028 void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw)
1030 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 = bus->func;
1039 /* check for a port swap */
1040 reg = IXGBE_READ_REG(hw, IXGBE_FACTPS);
1041 if (reg & IXGBE_FACTPS_LFS)
1046 * ixgbe_stop_adapter_generic - Generic stop Tx/Rx units
1047 * @hw: pointer to hardware structure
1049 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
1050 * disables transmit and receive units. The adapter_stopped flag is used by
1051 * the shared code and drivers to determine if the adapter is in a stopped
1052 * state and should not touch the hardware.
1054 s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw)
1059 DEBUGFUNC("ixgbe_stop_adapter_generic");
1062 * Set the adapter_stopped flag so other driver functions stop touching
1065 hw->adapter_stopped = TRUE;
1067 /* Disable the receive unit */
1068 ixgbe_disable_rx(hw);
1070 /* Clear interrupt mask to stop interrupts from being generated */
1071 IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK);
1073 /* Clear any pending interrupts, flush previous writes */
1074 IXGBE_READ_REG(hw, IXGBE_EICR);
1076 /* Disable the transmit unit. Each queue must be disabled. */
1077 for (i = 0; i < hw->mac.max_tx_queues; i++)
1078 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(i), IXGBE_TXDCTL_SWFLSH);
1080 /* Disable the receive unit by stopping each queue */
1081 for (i = 0; i < hw->mac.max_rx_queues; i++) {
1082 reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
1083 reg_val &= ~IXGBE_RXDCTL_ENABLE;
1084 reg_val |= IXGBE_RXDCTL_SWFLSH;
1085 IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val);
1088 /* flush all queues disables */
1089 IXGBE_WRITE_FLUSH(hw);
1093 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
1094 * access and verify no pending requests
1096 return ixgbe_disable_pcie_master(hw);
1100 * ixgbe_led_on_generic - Turns on the software controllable LEDs.
1101 * @hw: pointer to hardware structure
1102 * @index: led number to turn on
1104 s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
1106 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
1108 DEBUGFUNC("ixgbe_led_on_generic");
1110 /* To turn on the LED, set mode to ON. */
1111 led_reg &= ~IXGBE_LED_MODE_MASK(index);
1112 led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index);
1113 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
1114 IXGBE_WRITE_FLUSH(hw);
1116 return IXGBE_SUCCESS;
1120 * ixgbe_led_off_generic - Turns off the software controllable LEDs.
1121 * @hw: pointer to hardware structure
1122 * @index: led number to turn off
1124 s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
1126 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
1128 DEBUGFUNC("ixgbe_led_off_generic");
1130 /* To turn off the LED, set mode to OFF. */
1131 led_reg &= ~IXGBE_LED_MODE_MASK(index);
1132 led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index);
1133 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
1134 IXGBE_WRITE_FLUSH(hw);
1136 return IXGBE_SUCCESS;
1140 * ixgbe_init_eeprom_params_generic - Initialize EEPROM params
1141 * @hw: pointer to hardware structure
1143 * Initializes the EEPROM parameters ixgbe_eeprom_info within the
1144 * ixgbe_hw struct in order to set up EEPROM access.
1146 s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw)
1148 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
1152 DEBUGFUNC("ixgbe_init_eeprom_params_generic");
1154 if (eeprom->type == ixgbe_eeprom_uninitialized) {
1155 eeprom->type = ixgbe_eeprom_none;
1156 /* Set default semaphore delay to 10ms which is a well
1158 eeprom->semaphore_delay = 10;
1159 /* Clear EEPROM page size, it will be initialized as needed */
1160 eeprom->word_page_size = 0;
1163 * Check for EEPROM present first.
1164 * If not present leave as none
1166 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1167 if (eec & IXGBE_EEC_PRES) {
1168 eeprom->type = ixgbe_eeprom_spi;
1171 * SPI EEPROM is assumed here. This code would need to
1172 * change if a future EEPROM is not SPI.
1174 eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >>
1175 IXGBE_EEC_SIZE_SHIFT);
1176 eeprom->word_size = 1 << (eeprom_size +
1177 IXGBE_EEPROM_WORD_SIZE_SHIFT);
1180 if (eec & IXGBE_EEC_ADDR_SIZE)
1181 eeprom->address_bits = 16;
1183 eeprom->address_bits = 8;
1184 DEBUGOUT3("Eeprom params: type = %d, size = %d, address bits: "
1185 "%d\n", eeprom->type, eeprom->word_size,
1186 eeprom->address_bits);
1189 return IXGBE_SUCCESS;
1193 * ixgbe_write_eeprom_buffer_bit_bang_generic - Write EEPROM using bit-bang
1194 * @hw: pointer to hardware structure
1195 * @offset: offset within the EEPROM to write
1196 * @words: number of word(s)
1197 * @data: 16 bit word(s) to write to EEPROM
1199 * Reads 16 bit word(s) from EEPROM through bit-bang method
1201 s32 ixgbe_write_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1202 u16 words, u16 *data)
1204 s32 status = IXGBE_SUCCESS;
1207 DEBUGFUNC("ixgbe_write_eeprom_buffer_bit_bang_generic");
1209 hw->eeprom.ops.init_params(hw);
1212 status = IXGBE_ERR_INVALID_ARGUMENT;
1216 if (offset + words > hw->eeprom.word_size) {
1217 status = IXGBE_ERR_EEPROM;
1222 * The EEPROM page size cannot be queried from the chip. We do lazy
1223 * initialization. It is worth to do that when we write large buffer.
1225 if ((hw->eeprom.word_page_size == 0) &&
1226 (words > IXGBE_EEPROM_PAGE_SIZE_MAX))
1227 ixgbe_detect_eeprom_page_size_generic(hw, offset);
1230 * We cannot hold synchronization semaphores for too long
1231 * to avoid other entity starvation. However it is more efficient
1232 * to read in bursts than synchronizing access for each word.
1234 for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) {
1235 count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ?
1236 IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i);
1237 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset + i,
1240 if (status != IXGBE_SUCCESS)
1249 * ixgbe_write_eeprom_buffer_bit_bang - Writes 16 bit word(s) to EEPROM
1250 * @hw: pointer to hardware structure
1251 * @offset: offset within the EEPROM to be written to
1252 * @words: number of word(s)
1253 * @data: 16 bit word(s) to be written to the EEPROM
1255 * If ixgbe_eeprom_update_checksum is not called after this function, the
1256 * EEPROM will most likely contain an invalid checksum.
1258 static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
1259 u16 words, u16 *data)
1265 u8 write_opcode = IXGBE_EEPROM_WRITE_OPCODE_SPI;
1267 DEBUGFUNC("ixgbe_write_eeprom_buffer_bit_bang");
1269 /* Prepare the EEPROM for writing */
1270 status = ixgbe_acquire_eeprom(hw);
1272 if (status == IXGBE_SUCCESS) {
1273 if (ixgbe_ready_eeprom(hw) != IXGBE_SUCCESS) {
1274 ixgbe_release_eeprom(hw);
1275 status = IXGBE_ERR_EEPROM;
1279 if (status == IXGBE_SUCCESS) {
1280 for (i = 0; i < words; i++) {
1281 ixgbe_standby_eeprom(hw);
1283 /* Send the WRITE ENABLE command (8 bit opcode ) */
1284 ixgbe_shift_out_eeprom_bits(hw,
1285 IXGBE_EEPROM_WREN_OPCODE_SPI,
1286 IXGBE_EEPROM_OPCODE_BITS);
1288 ixgbe_standby_eeprom(hw);
1291 * Some SPI eeproms use the 8th address bit embedded
1294 if ((hw->eeprom.address_bits == 8) &&
1295 ((offset + i) >= 128))
1296 write_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
1298 /* Send the Write command (8-bit opcode + addr) */
1299 ixgbe_shift_out_eeprom_bits(hw, write_opcode,
1300 IXGBE_EEPROM_OPCODE_BITS);
1301 ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2),
1302 hw->eeprom.address_bits);
1304 page_size = hw->eeprom.word_page_size;
1306 /* Send the data in burst via SPI*/
1309 word = (word >> 8) | (word << 8);
1310 ixgbe_shift_out_eeprom_bits(hw, word, 16);
1315 /* do not wrap around page */
1316 if (((offset + i) & (page_size - 1)) ==
1319 } while (++i < words);
1321 ixgbe_standby_eeprom(hw);
1324 /* Done with writing - release the EEPROM */
1325 ixgbe_release_eeprom(hw);
1332 * ixgbe_write_eeprom_generic - Writes 16 bit value to EEPROM
1333 * @hw: pointer to hardware structure
1334 * @offset: offset within the EEPROM to be written to
1335 * @data: 16 bit word to be written to the EEPROM
1337 * If ixgbe_eeprom_update_checksum is not called after this function, the
1338 * EEPROM will most likely contain an invalid checksum.
1340 s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
1344 DEBUGFUNC("ixgbe_write_eeprom_generic");
1346 hw->eeprom.ops.init_params(hw);
1348 if (offset >= hw->eeprom.word_size) {
1349 status = IXGBE_ERR_EEPROM;
1353 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset, 1, &data);
1360 * ixgbe_read_eeprom_buffer_bit_bang_generic - Read EEPROM using bit-bang
1361 * @hw: pointer to hardware structure
1362 * @offset: offset within the EEPROM to be read
1363 * @data: read 16 bit words(s) from EEPROM
1364 * @words: number of word(s)
1366 * Reads 16 bit word(s) from EEPROM through bit-bang method
1368 s32 ixgbe_read_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1369 u16 words, u16 *data)
1371 s32 status = IXGBE_SUCCESS;
1374 DEBUGFUNC("ixgbe_read_eeprom_buffer_bit_bang_generic");
1376 hw->eeprom.ops.init_params(hw);
1379 status = IXGBE_ERR_INVALID_ARGUMENT;
1383 if (offset + words > hw->eeprom.word_size) {
1384 status = IXGBE_ERR_EEPROM;
1389 * We cannot hold synchronization semaphores for too long
1390 * to avoid other entity starvation. However it is more efficient
1391 * to read in bursts than synchronizing access for each word.
1393 for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) {
1394 count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ?
1395 IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i);
1397 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset + i,
1400 if (status != IXGBE_SUCCESS)
1409 * ixgbe_read_eeprom_buffer_bit_bang - Read EEPROM using bit-bang
1410 * @hw: pointer to hardware structure
1411 * @offset: offset within the EEPROM to be read
1412 * @words: number of word(s)
1413 * @data: read 16 bit word(s) from EEPROM
1415 * Reads 16 bit word(s) from EEPROM through bit-bang method
1417 static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset,
1418 u16 words, u16 *data)
1422 u8 read_opcode = IXGBE_EEPROM_READ_OPCODE_SPI;
1425 DEBUGFUNC("ixgbe_read_eeprom_buffer_bit_bang");
1427 /* Prepare the EEPROM for reading */
1428 status = ixgbe_acquire_eeprom(hw);
1430 if (status == IXGBE_SUCCESS) {
1431 if (ixgbe_ready_eeprom(hw) != IXGBE_SUCCESS) {
1432 ixgbe_release_eeprom(hw);
1433 status = IXGBE_ERR_EEPROM;
1437 if (status == IXGBE_SUCCESS) {
1438 for (i = 0; i < words; i++) {
1439 ixgbe_standby_eeprom(hw);
1441 * Some SPI eeproms use the 8th address bit embedded
1444 if ((hw->eeprom.address_bits == 8) &&
1445 ((offset + i) >= 128))
1446 read_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI;
1448 /* Send the READ command (opcode + addr) */
1449 ixgbe_shift_out_eeprom_bits(hw, read_opcode,
1450 IXGBE_EEPROM_OPCODE_BITS);
1451 ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2),
1452 hw->eeprom.address_bits);
1454 /* Read the data. */
1455 word_in = ixgbe_shift_in_eeprom_bits(hw, 16);
1456 data[i] = (word_in >> 8) | (word_in << 8);
1459 /* End this read operation */
1460 ixgbe_release_eeprom(hw);
1467 * ixgbe_read_eeprom_bit_bang_generic - Read EEPROM word using bit-bang
1468 * @hw: pointer to hardware structure
1469 * @offset: offset within the EEPROM to be read
1470 * @data: read 16 bit value from EEPROM
1472 * Reads 16 bit value from EEPROM through bit-bang method
1474 s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset,
1479 DEBUGFUNC("ixgbe_read_eeprom_bit_bang_generic");
1481 hw->eeprom.ops.init_params(hw);
1483 if (offset >= hw->eeprom.word_size) {
1484 status = IXGBE_ERR_EEPROM;
1488 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
1495 * ixgbe_read_eerd_buffer_generic - Read EEPROM word(s) using EERD
1496 * @hw: pointer to hardware structure
1497 * @offset: offset of word in the EEPROM to read
1498 * @words: number of word(s)
1499 * @data: 16 bit word(s) from the EEPROM
1501 * Reads a 16 bit word(s) from the EEPROM using the EERD register.
1503 s32 ixgbe_read_eerd_buffer_generic(struct ixgbe_hw *hw, u16 offset,
1504 u16 words, u16 *data)
1507 s32 status = IXGBE_SUCCESS;
1510 DEBUGFUNC("ixgbe_read_eerd_buffer_generic");
1512 hw->eeprom.ops.init_params(hw);
1515 status = IXGBE_ERR_INVALID_ARGUMENT;
1516 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM words");
1520 if (offset >= hw->eeprom.word_size) {
1521 status = IXGBE_ERR_EEPROM;
1522 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM offset");
1526 for (i = 0; i < words; i++) {
1527 eerd = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
1528 IXGBE_EEPROM_RW_REG_START;
1530 IXGBE_WRITE_REG(hw, IXGBE_EERD, eerd);
1531 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_READ);
1533 if (status == IXGBE_SUCCESS) {
1534 data[i] = (IXGBE_READ_REG(hw, IXGBE_EERD) >>
1535 IXGBE_EEPROM_RW_REG_DATA);
1537 DEBUGOUT("Eeprom read timed out\n");
1546 * ixgbe_detect_eeprom_page_size_generic - Detect EEPROM page size
1547 * @hw: pointer to hardware structure
1548 * @offset: offset within the EEPROM to be used as a scratch pad
1550 * Discover EEPROM page size by writing marching data at given offset.
1551 * This function is called only when we are writing a new large buffer
1552 * at given offset so the data would be overwritten anyway.
1554 static s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw,
1557 u16 data[IXGBE_EEPROM_PAGE_SIZE_MAX];
1558 s32 status = IXGBE_SUCCESS;
1561 DEBUGFUNC("ixgbe_detect_eeprom_page_size_generic");
1563 for (i = 0; i < IXGBE_EEPROM_PAGE_SIZE_MAX; i++)
1566 hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX;
1567 status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset,
1568 IXGBE_EEPROM_PAGE_SIZE_MAX, data);
1569 hw->eeprom.word_page_size = 0;
1570 if (status != IXGBE_SUCCESS)
1573 status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data);
1574 if (status != IXGBE_SUCCESS)
1578 * When writing in burst more than the actual page size
1579 * EEPROM address wraps around current page.
1581 hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX - data[0];
1583 DEBUGOUT1("Detected EEPROM page size = %d words.",
1584 hw->eeprom.word_page_size);
1590 * ixgbe_read_eerd_generic - Read EEPROM word using EERD
1591 * @hw: pointer to hardware structure
1592 * @offset: offset of word in the EEPROM to read
1593 * @data: word read from the EEPROM
1595 * Reads a 16 bit word from the EEPROM using the EERD register.
1597 s32 ixgbe_read_eerd_generic(struct ixgbe_hw *hw, u16 offset, u16 *data)
1599 return ixgbe_read_eerd_buffer_generic(hw, offset, 1, data);
1603 * ixgbe_write_eewr_buffer_generic - Write EEPROM word(s) using EEWR
1604 * @hw: pointer to hardware structure
1605 * @offset: offset of word in the EEPROM to write
1606 * @words: number of word(s)
1607 * @data: word(s) write to the EEPROM
1609 * Write a 16 bit word(s) to the EEPROM using the EEWR register.
1611 s32 ixgbe_write_eewr_buffer_generic(struct ixgbe_hw *hw, u16 offset,
1612 u16 words, u16 *data)
1615 s32 status = IXGBE_SUCCESS;
1618 DEBUGFUNC("ixgbe_write_eewr_generic");
1620 hw->eeprom.ops.init_params(hw);
1623 status = IXGBE_ERR_INVALID_ARGUMENT;
1624 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM words");
1628 if (offset >= hw->eeprom.word_size) {
1629 status = IXGBE_ERR_EEPROM;
1630 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM offset");
1634 for (i = 0; i < words; i++) {
1635 eewr = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) |
1636 (data[i] << IXGBE_EEPROM_RW_REG_DATA) |
1637 IXGBE_EEPROM_RW_REG_START;
1639 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE);
1640 if (status != IXGBE_SUCCESS) {
1641 DEBUGOUT("Eeprom write EEWR timed out\n");
1645 IXGBE_WRITE_REG(hw, IXGBE_EEWR, eewr);
1647 status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE);
1648 if (status != IXGBE_SUCCESS) {
1649 DEBUGOUT("Eeprom write EEWR timed out\n");
1659 * ixgbe_write_eewr_generic - Write EEPROM word using EEWR
1660 * @hw: pointer to hardware structure
1661 * @offset: offset of word in the EEPROM to write
1662 * @data: word write to the EEPROM
1664 * Write a 16 bit word to the EEPROM using the EEWR register.
1666 s32 ixgbe_write_eewr_generic(struct ixgbe_hw *hw, u16 offset, u16 data)
1668 return ixgbe_write_eewr_buffer_generic(hw, offset, 1, &data);
1672 * ixgbe_poll_eerd_eewr_done - Poll EERD read or EEWR write status
1673 * @hw: pointer to hardware structure
1674 * @ee_reg: EEPROM flag for polling
1676 * Polls the status bit (bit 1) of the EERD or EEWR to determine when the
1677 * read or write is done respectively.
1679 s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg)
1683 s32 status = IXGBE_ERR_EEPROM;
1685 DEBUGFUNC("ixgbe_poll_eerd_eewr_done");
1687 for (i = 0; i < IXGBE_EERD_EEWR_ATTEMPTS; i++) {
1688 if (ee_reg == IXGBE_NVM_POLL_READ)
1689 reg = IXGBE_READ_REG(hw, IXGBE_EERD);
1691 reg = IXGBE_READ_REG(hw, IXGBE_EEWR);
1693 if (reg & IXGBE_EEPROM_RW_REG_DONE) {
1694 status = IXGBE_SUCCESS;
1700 if (i == IXGBE_EERD_EEWR_ATTEMPTS)
1701 ERROR_REPORT1(IXGBE_ERROR_POLLING,
1702 "EEPROM read/write done polling timed out");
1708 * ixgbe_acquire_eeprom - Acquire EEPROM using bit-bang
1709 * @hw: pointer to hardware structure
1711 * Prepares EEPROM for access using bit-bang method. This function should
1712 * be called before issuing a command to the EEPROM.
1714 static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw)
1716 s32 status = IXGBE_SUCCESS;
1720 DEBUGFUNC("ixgbe_acquire_eeprom");
1722 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)
1724 status = IXGBE_ERR_SWFW_SYNC;
1726 if (status == IXGBE_SUCCESS) {
1727 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1729 /* Request EEPROM Access */
1730 eec |= IXGBE_EEC_REQ;
1731 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1733 for (i = 0; i < IXGBE_EEPROM_GRANT_ATTEMPTS; i++) {
1734 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1735 if (eec & IXGBE_EEC_GNT)
1740 /* Release if grant not acquired */
1741 if (!(eec & IXGBE_EEC_GNT)) {
1742 eec &= ~IXGBE_EEC_REQ;
1743 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1744 DEBUGOUT("Could not acquire EEPROM grant\n");
1746 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
1747 status = IXGBE_ERR_EEPROM;
1750 /* Setup EEPROM for Read/Write */
1751 if (status == IXGBE_SUCCESS) {
1752 /* Clear CS and SK */
1753 eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
1754 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1755 IXGBE_WRITE_FLUSH(hw);
1763 * ixgbe_get_eeprom_semaphore - Get hardware semaphore
1764 * @hw: pointer to hardware structure
1766 * Sets the hardware semaphores so EEPROM access can occur for bit-bang method
1768 static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw)
1770 s32 status = IXGBE_ERR_EEPROM;
1775 DEBUGFUNC("ixgbe_get_eeprom_semaphore");
1778 /* Get SMBI software semaphore between device drivers first */
1779 for (i = 0; i < timeout; i++) {
1781 * If the SMBI bit is 0 when we read it, then the bit will be
1782 * set and we have the semaphore
1784 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
1785 if (!(swsm & IXGBE_SWSM_SMBI)) {
1786 status = IXGBE_SUCCESS;
1793 DEBUGOUT("Driver can't access the Eeprom - SMBI Semaphore "
1796 * this release is particularly important because our attempts
1797 * above to get the semaphore may have succeeded, and if there
1798 * was a timeout, we should unconditionally clear the semaphore
1799 * bits to free the driver to make progress
1801 ixgbe_release_eeprom_semaphore(hw);
1806 * If the SMBI bit is 0 when we read it, then the bit will be
1807 * set and we have the semaphore
1809 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
1810 if (!(swsm & IXGBE_SWSM_SMBI))
1811 status = IXGBE_SUCCESS;
1814 /* Now get the semaphore between SW/FW through the SWESMBI bit */
1815 if (status == IXGBE_SUCCESS) {
1816 for (i = 0; i < timeout; i++) {
1817 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
1819 /* Set the SW EEPROM semaphore bit to request access */
1820 swsm |= IXGBE_SWSM_SWESMBI;
1821 IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm);
1824 * If we set the bit successfully then we got the
1827 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
1828 if (swsm & IXGBE_SWSM_SWESMBI)
1835 * Release semaphores and return error if SW EEPROM semaphore
1836 * was not granted because we don't have access to the EEPROM
1839 ERROR_REPORT1(IXGBE_ERROR_POLLING,
1840 "SWESMBI Software EEPROM semaphore not granted.\n");
1841 ixgbe_release_eeprom_semaphore(hw);
1842 status = IXGBE_ERR_EEPROM;
1845 ERROR_REPORT1(IXGBE_ERROR_POLLING,
1846 "Software semaphore SMBI between device drivers "
1854 * ixgbe_release_eeprom_semaphore - Release hardware semaphore
1855 * @hw: pointer to hardware structure
1857 * This function clears hardware semaphore bits.
1859 static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw)
1863 DEBUGFUNC("ixgbe_release_eeprom_semaphore");
1865 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM);
1867 /* Release both semaphores by writing 0 to the bits SWESMBI and SMBI */
1868 swsm &= ~(IXGBE_SWSM_SWESMBI | IXGBE_SWSM_SMBI);
1869 IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm);
1870 IXGBE_WRITE_FLUSH(hw);
1874 * ixgbe_ready_eeprom - Polls for EEPROM ready
1875 * @hw: pointer to hardware structure
1877 static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw)
1879 s32 status = IXGBE_SUCCESS;
1883 DEBUGFUNC("ixgbe_ready_eeprom");
1886 * Read "Status Register" repeatedly until the LSB is cleared. The
1887 * EEPROM will signal that the command has been completed by clearing
1888 * bit 0 of the internal status register. If it's not cleared within
1889 * 5 milliseconds, then error out.
1891 for (i = 0; i < IXGBE_EEPROM_MAX_RETRY_SPI; i += 5) {
1892 ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_RDSR_OPCODE_SPI,
1893 IXGBE_EEPROM_OPCODE_BITS);
1894 spi_stat_reg = (u8)ixgbe_shift_in_eeprom_bits(hw, 8);
1895 if (!(spi_stat_reg & IXGBE_EEPROM_STATUS_RDY_SPI))
1899 ixgbe_standby_eeprom(hw);
1903 * On some parts, SPI write time could vary from 0-20mSec on 3.3V
1904 * devices (and only 0-5mSec on 5V devices)
1906 if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) {
1907 DEBUGOUT("SPI EEPROM Status error\n");
1908 status = IXGBE_ERR_EEPROM;
1915 * ixgbe_standby_eeprom - Returns EEPROM to a "standby" state
1916 * @hw: pointer to hardware structure
1918 static void ixgbe_standby_eeprom(struct ixgbe_hw *hw)
1922 DEBUGFUNC("ixgbe_standby_eeprom");
1924 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1926 /* Toggle CS to flush commands */
1927 eec |= IXGBE_EEC_CS;
1928 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1929 IXGBE_WRITE_FLUSH(hw);
1931 eec &= ~IXGBE_EEC_CS;
1932 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1933 IXGBE_WRITE_FLUSH(hw);
1938 * ixgbe_shift_out_eeprom_bits - Shift data bits out to the EEPROM.
1939 * @hw: pointer to hardware structure
1940 * @data: data to send to the EEPROM
1941 * @count: number of bits to shift out
1943 static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data,
1950 DEBUGFUNC("ixgbe_shift_out_eeprom_bits");
1952 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1955 * Mask is used to shift "count" bits of "data" out to the EEPROM
1956 * one bit at a time. Determine the starting bit based on count
1958 mask = 0x01 << (count - 1);
1960 for (i = 0; i < count; i++) {
1962 * A "1" is shifted out to the EEPROM by setting bit "DI" to a
1963 * "1", and then raising and then lowering the clock (the SK
1964 * bit controls the clock input to the EEPROM). A "0" is
1965 * shifted out to the EEPROM by setting "DI" to "0" and then
1966 * raising and then lowering the clock.
1969 eec |= IXGBE_EEC_DI;
1971 eec &= ~IXGBE_EEC_DI;
1973 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1974 IXGBE_WRITE_FLUSH(hw);
1978 ixgbe_raise_eeprom_clk(hw, &eec);
1979 ixgbe_lower_eeprom_clk(hw, &eec);
1982 * Shift mask to signify next bit of data to shift in to the
1988 /* We leave the "DI" bit set to "0" when we leave this routine. */
1989 eec &= ~IXGBE_EEC_DI;
1990 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1991 IXGBE_WRITE_FLUSH(hw);
1995 * ixgbe_shift_in_eeprom_bits - Shift data bits in from the EEPROM
1996 * @hw: pointer to hardware structure
1998 static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count)
2004 DEBUGFUNC("ixgbe_shift_in_eeprom_bits");
2007 * In order to read a register from the EEPROM, we need to shift
2008 * 'count' bits in from the EEPROM. Bits are "shifted in" by raising
2009 * the clock input to the EEPROM (setting the SK bit), and then reading
2010 * the value of the "DO" bit. During this "shifting in" process the
2011 * "DI" bit should always be clear.
2013 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
2015 eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI);
2017 for (i = 0; i < count; i++) {
2019 ixgbe_raise_eeprom_clk(hw, &eec);
2021 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
2023 eec &= ~(IXGBE_EEC_DI);
2024 if (eec & IXGBE_EEC_DO)
2027 ixgbe_lower_eeprom_clk(hw, &eec);
2034 * ixgbe_raise_eeprom_clk - Raises the EEPROM's clock input.
2035 * @hw: pointer to hardware structure
2036 * @eec: EEC register's current value
2038 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
2040 DEBUGFUNC("ixgbe_raise_eeprom_clk");
2043 * Raise the clock input to the EEPROM
2044 * (setting the SK bit), then delay
2046 *eec = *eec | IXGBE_EEC_SK;
2047 IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
2048 IXGBE_WRITE_FLUSH(hw);
2053 * ixgbe_lower_eeprom_clk - Lowers the EEPROM's clock input.
2054 * @hw: pointer to hardware structure
2055 * @eecd: EECD's current value
2057 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
2059 DEBUGFUNC("ixgbe_lower_eeprom_clk");
2062 * Lower the clock input to the EEPROM (clearing the SK bit), then
2065 *eec = *eec & ~IXGBE_EEC_SK;
2066 IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
2067 IXGBE_WRITE_FLUSH(hw);
2072 * ixgbe_release_eeprom - Release EEPROM, release semaphores
2073 * @hw: pointer to hardware structure
2075 static void ixgbe_release_eeprom(struct ixgbe_hw *hw)
2079 DEBUGFUNC("ixgbe_release_eeprom");
2081 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
2083 eec |= IXGBE_EEC_CS; /* Pull CS high */
2084 eec &= ~IXGBE_EEC_SK; /* Lower SCK */
2086 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
2087 IXGBE_WRITE_FLUSH(hw);
2091 /* Stop requesting EEPROM access */
2092 eec &= ~IXGBE_EEC_REQ;
2093 IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
2095 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM);
2097 /* Delay before attempt to obtain semaphore again to allow FW access */
2098 msec_delay(hw->eeprom.semaphore_delay);
2102 * ixgbe_calc_eeprom_checksum_generic - Calculates and returns the checksum
2103 * @hw: pointer to hardware structure
2105 * Returns a negative error code on error, or the 16-bit checksum
2107 s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw)
2116 DEBUGFUNC("ixgbe_calc_eeprom_checksum_generic");
2118 /* Include 0x0-0x3F in the checksum */
2119 for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) {
2120 if (hw->eeprom.ops.read(hw, i, &word)) {
2121 DEBUGOUT("EEPROM read failed\n");
2122 return IXGBE_ERR_EEPROM;
2127 /* Include all data from pointers except for the fw pointer */
2128 for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) {
2129 if (hw->eeprom.ops.read(hw, i, &pointer)) {
2130 DEBUGOUT("EEPROM read failed\n");
2131 return IXGBE_ERR_EEPROM;
2134 /* If the pointer seems invalid */
2135 if (pointer == 0xFFFF || pointer == 0)
2138 if (hw->eeprom.ops.read(hw, pointer, &length)) {
2139 DEBUGOUT("EEPROM read failed\n");
2140 return IXGBE_ERR_EEPROM;
2143 if (length == 0xFFFF || length == 0)
2146 for (j = pointer + 1; j <= pointer + length; j++) {
2147 if (hw->eeprom.ops.read(hw, j, &word)) {
2148 DEBUGOUT("EEPROM read failed\n");
2149 return IXGBE_ERR_EEPROM;
2155 checksum = (u16)IXGBE_EEPROM_SUM - checksum;
2157 return (s32)checksum;
2161 * ixgbe_validate_eeprom_checksum_generic - Validate EEPROM checksum
2162 * @hw: pointer to hardware structure
2163 * @checksum_val: calculated checksum
2165 * Performs checksum calculation and validates the EEPROM checksum. If the
2166 * caller does not need checksum_val, the value can be NULL.
2168 s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw,
2173 u16 read_checksum = 0;
2175 DEBUGFUNC("ixgbe_validate_eeprom_checksum_generic");
2177 /* Read the first word from the EEPROM. If this times out or fails, do
2178 * not continue or we could be in for a very long wait while every
2181 status = hw->eeprom.ops.read(hw, 0, &checksum);
2183 DEBUGOUT("EEPROM read failed\n");
2187 status = hw->eeprom.ops.calc_checksum(hw);
2191 checksum = (u16)(status & 0xffff);
2193 status = hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum);
2195 DEBUGOUT("EEPROM read failed\n");
2199 /* Verify read checksum from EEPROM is the same as
2200 * calculated checksum
2202 if (read_checksum != checksum)
2203 status = IXGBE_ERR_EEPROM_CHECKSUM;
2205 /* If the user cares, return the calculated checksum */
2207 *checksum_val = checksum;
2213 * ixgbe_update_eeprom_checksum_generic - Updates the EEPROM checksum
2214 * @hw: pointer to hardware structure
2216 s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw)
2221 DEBUGFUNC("ixgbe_update_eeprom_checksum_generic");
2223 /* Read the first word from the EEPROM. If this times out or fails, do
2224 * not continue or we could be in for a very long wait while every
2227 status = hw->eeprom.ops.read(hw, 0, &checksum);
2229 DEBUGOUT("EEPROM read failed\n");
2233 status = hw->eeprom.ops.calc_checksum(hw);
2237 checksum = (u16)(status & 0xffff);
2239 status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM, checksum);
2245 * ixgbe_validate_mac_addr - Validate MAC address
2246 * @mac_addr: pointer to MAC address.
2248 * Tests a MAC address to ensure it is a valid Individual Address
2250 s32 ixgbe_validate_mac_addr(u8 *mac_addr)
2252 s32 status = IXGBE_SUCCESS;
2254 DEBUGFUNC("ixgbe_validate_mac_addr");
2256 /* Make sure it is not a multicast address */
2257 if (IXGBE_IS_MULTICAST(mac_addr)) {
2258 DEBUGOUT("MAC address is multicast\n");
2259 status = IXGBE_ERR_INVALID_MAC_ADDR;
2260 /* Not a broadcast address */
2261 } else if (IXGBE_IS_BROADCAST(mac_addr)) {
2262 DEBUGOUT("MAC address is broadcast\n");
2263 status = IXGBE_ERR_INVALID_MAC_ADDR;
2264 /* Reject the zero address */
2265 } else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
2266 mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0) {
2267 DEBUGOUT("MAC address is all zeros\n");
2268 status = IXGBE_ERR_INVALID_MAC_ADDR;
2274 * ixgbe_set_rar_generic - Set Rx address register
2275 * @hw: pointer to hardware structure
2276 * @index: Receive address register to write
2277 * @addr: Address to put into receive address register
2278 * @vmdq: VMDq "set" or "pool" index
2279 * @enable_addr: set flag that address is active
2281 * Puts an ethernet address into a receive address register.
2283 s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
2286 u32 rar_low, rar_high;
2287 u32 rar_entries = hw->mac.num_rar_entries;
2289 DEBUGFUNC("ixgbe_set_rar_generic");
2291 /* Make sure we are using a valid rar index range */
2292 if (index >= rar_entries) {
2293 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
2294 "RAR index %d is out of range.\n", index);
2295 return IXGBE_ERR_INVALID_ARGUMENT;
2298 /* setup VMDq pool selection before this RAR gets enabled */
2299 hw->mac.ops.set_vmdq(hw, index, vmdq);
2302 * HW expects these in little endian so we reverse the byte
2303 * order from network order (big endian) to little endian
2305 rar_low = ((u32)addr[0] |
2306 ((u32)addr[1] << 8) |
2307 ((u32)addr[2] << 16) |
2308 ((u32)addr[3] << 24));
2310 * Some parts put the VMDq setting in the extra RAH bits,
2311 * so save everything except the lower 16 bits that hold part
2312 * of the address and the address valid bit.
2314 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
2315 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
2316 rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8));
2318 if (enable_addr != 0)
2319 rar_high |= IXGBE_RAH_AV;
2321 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low);
2322 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
2324 return IXGBE_SUCCESS;
2328 * ixgbe_clear_rar_generic - Remove Rx address register
2329 * @hw: pointer to hardware structure
2330 * @index: Receive address register to write
2332 * Clears an ethernet address from a receive address register.
2334 s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index)
2337 u32 rar_entries = hw->mac.num_rar_entries;
2339 DEBUGFUNC("ixgbe_clear_rar_generic");
2341 /* Make sure we are using a valid rar index range */
2342 if (index >= rar_entries) {
2343 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
2344 "RAR index %d is out of range.\n", index);
2345 return IXGBE_ERR_INVALID_ARGUMENT;
2349 * Some parts put the VMDq setting in the extra RAH bits,
2350 * so save everything except the lower 16 bits that hold part
2351 * of the address and the address valid bit.
2353 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index));
2354 rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV);
2356 IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0);
2357 IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high);
2359 /* clear VMDq pool/queue selection for this RAR */
2360 hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL);
2362 return IXGBE_SUCCESS;
2366 * ixgbe_init_rx_addrs_generic - Initializes receive address filters.
2367 * @hw: pointer to hardware structure
2369 * Places the MAC address in receive address register 0 and clears the rest
2370 * of the receive address registers. Clears the multicast table. Assumes
2371 * the receiver is in reset when the routine is called.
2373 s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw)
2376 u32 rar_entries = hw->mac.num_rar_entries;
2378 DEBUGFUNC("ixgbe_init_rx_addrs_generic");
2381 * If the current mac address is valid, assume it is a software override
2382 * to the permanent address.
2383 * Otherwise, use the permanent address from the eeprom.
2385 if (ixgbe_validate_mac_addr(hw->mac.addr) ==
2386 IXGBE_ERR_INVALID_MAC_ADDR) {
2387 /* Get the MAC address from the RAR0 for later reference */
2388 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
2390 DEBUGOUT3(" Keeping Current RAR0 Addr =%.2X %.2X %.2X ",
2391 hw->mac.addr[0], hw->mac.addr[1],
2393 DEBUGOUT3("%.2X %.2X %.2X\n", hw->mac.addr[3],
2394 hw->mac.addr[4], hw->mac.addr[5]);
2396 /* Setup the receive address. */
2397 DEBUGOUT("Overriding MAC Address in RAR[0]\n");
2398 DEBUGOUT3(" New MAC Addr =%.2X %.2X %.2X ",
2399 hw->mac.addr[0], hw->mac.addr[1],
2401 DEBUGOUT3("%.2X %.2X %.2X\n", hw->mac.addr[3],
2402 hw->mac.addr[4], hw->mac.addr[5]);
2404 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
2406 /* clear VMDq pool/queue selection for RAR 0 */
2407 hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL);
2409 hw->addr_ctrl.overflow_promisc = 0;
2411 hw->addr_ctrl.rar_used_count = 1;
2413 /* Zero out the other receive addresses. */
2414 DEBUGOUT1("Clearing RAR[1-%d]\n", rar_entries - 1);
2415 for (i = 1; i < rar_entries; i++) {
2416 IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
2417 IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
2421 hw->addr_ctrl.mta_in_use = 0;
2422 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
2424 DEBUGOUT(" Clearing MTA\n");
2425 for (i = 0; i < hw->mac.mcft_size; i++)
2426 IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0);
2428 ixgbe_init_uta_tables(hw);
2430 return IXGBE_SUCCESS;
2434 * ixgbe_add_uc_addr - Adds a secondary unicast address.
2435 * @hw: pointer to hardware structure
2436 * @addr: new address
2438 * Adds it to unused receive address register or goes into promiscuous mode.
2440 void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
2442 u32 rar_entries = hw->mac.num_rar_entries;
2445 DEBUGFUNC("ixgbe_add_uc_addr");
2447 DEBUGOUT6(" UC Addr = %.2X %.2X %.2X %.2X %.2X %.2X\n",
2448 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
2451 * Place this address in the RAR if there is room,
2452 * else put the controller into promiscuous mode
2454 if (hw->addr_ctrl.rar_used_count < rar_entries) {
2455 rar = hw->addr_ctrl.rar_used_count;
2456 hw->mac.ops.set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
2457 DEBUGOUT1("Added a secondary address to RAR[%d]\n", rar);
2458 hw->addr_ctrl.rar_used_count++;
2460 hw->addr_ctrl.overflow_promisc++;
2463 DEBUGOUT("ixgbe_add_uc_addr Complete\n");
2467 * ixgbe_update_uc_addr_list_generic - Updates MAC list of secondary addresses
2468 * @hw: pointer to hardware structure
2469 * @addr_list: the list of new addresses
2470 * @addr_count: number of addresses
2471 * @next: iterator function to walk the address list
2473 * The given list replaces any existing list. Clears the secondary addrs from
2474 * receive address registers. Uses unused receive address registers for the
2475 * first secondary addresses, and falls back to promiscuous mode as needed.
2477 * Drivers using secondary unicast addresses must set user_set_promisc when
2478 * manually putting the device into promiscuous mode.
2480 s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
2481 u32 addr_count, ixgbe_mc_addr_itr next)
2485 u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc;
2490 DEBUGFUNC("ixgbe_update_uc_addr_list_generic");
2493 * Clear accounting of old secondary address list,
2494 * don't count RAR[0]
2496 uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1;
2497 hw->addr_ctrl.rar_used_count -= uc_addr_in_use;
2498 hw->addr_ctrl.overflow_promisc = 0;
2500 /* Zero out the other receive addresses */
2501 DEBUGOUT1("Clearing RAR[1-%d]\n", uc_addr_in_use+1);
2502 for (i = 0; i < uc_addr_in_use; i++) {
2503 IXGBE_WRITE_REG(hw, IXGBE_RAL(1+i), 0);
2504 IXGBE_WRITE_REG(hw, IXGBE_RAH(1+i), 0);
2507 /* Add the new addresses */
2508 for (i = 0; i < addr_count; i++) {
2509 DEBUGOUT(" Adding the secondary addresses:\n");
2510 addr = next(hw, &addr_list, &vmdq);
2511 ixgbe_add_uc_addr(hw, addr, vmdq);
2514 if (hw->addr_ctrl.overflow_promisc) {
2515 /* enable promisc if not already in overflow or set by user */
2516 if (!old_promisc_setting && !hw->addr_ctrl.user_set_promisc) {
2517 DEBUGOUT(" Entering address overflow promisc mode\n");
2518 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
2519 fctrl |= IXGBE_FCTRL_UPE;
2520 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
2523 /* only disable if set by overflow, not by user */
2524 if (old_promisc_setting && !hw->addr_ctrl.user_set_promisc) {
2525 DEBUGOUT(" Leaving address overflow promisc mode\n");
2526 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
2527 fctrl &= ~IXGBE_FCTRL_UPE;
2528 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
2532 DEBUGOUT("ixgbe_update_uc_addr_list_generic Complete\n");
2533 return IXGBE_SUCCESS;
2537 * ixgbe_mta_vector - Determines bit-vector in multicast table to set
2538 * @hw: pointer to hardware structure
2539 * @mc_addr: the multicast address
2541 * Extracts the 12 bits, from a multicast address, to determine which
2542 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
2543 * incoming rx multicast addresses, to determine the bit-vector to check in
2544 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
2545 * by the MO field of the MCSTCTRL. The MO field is set during initialization
2546 * to mc_filter_type.
2548 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
2552 DEBUGFUNC("ixgbe_mta_vector");
2554 switch (hw->mac.mc_filter_type) {
2555 case 0: /* use bits [47:36] of the address */
2556 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
2558 case 1: /* use bits [46:35] of the address */
2559 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
2561 case 2: /* use bits [45:34] of the address */
2562 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
2564 case 3: /* use bits [43:32] of the address */
2565 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
2567 default: /* Invalid mc_filter_type */
2568 DEBUGOUT("MC filter type param set incorrectly\n");
2573 /* vector can only be 12-bits or boundary will be exceeded */
2579 * ixgbe_set_mta - Set bit-vector in multicast table
2580 * @hw: pointer to hardware structure
2581 * @hash_value: Multicast address hash value
2583 * Sets the bit-vector in the multicast table.
2585 void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
2591 DEBUGFUNC("ixgbe_set_mta");
2593 hw->addr_ctrl.mta_in_use++;
2595 vector = ixgbe_mta_vector(hw, mc_addr);
2596 DEBUGOUT1(" bit-vector = 0x%03X\n", vector);
2599 * The MTA is a register array of 128 32-bit registers. It is treated
2600 * like an array of 4096 bits. We want to set bit
2601 * BitArray[vector_value]. So we figure out what register the bit is
2602 * in, read it, OR in the new bit, then write back the new value. The
2603 * register is determined by the upper 7 bits of the vector value and
2604 * the bit within that register are determined by the lower 5 bits of
2607 vector_reg = (vector >> 5) & 0x7F;
2608 vector_bit = vector & 0x1F;
2609 hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit);
2613 * ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses
2614 * @hw: pointer to hardware structure
2615 * @mc_addr_list: the list of new multicast addresses
2616 * @mc_addr_count: number of addresses
2617 * @next: iterator function to walk the multicast address list
2618 * @clear: flag, when set clears the table beforehand
2620 * When the clear flag is set, the given list replaces any existing list.
2621 * Hashes the given addresses into the multicast table.
2623 s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
2624 u32 mc_addr_count, ixgbe_mc_addr_itr next,
2630 DEBUGFUNC("ixgbe_update_mc_addr_list_generic");
2633 * Set the new number of MC addresses that we are being requested to
2636 hw->addr_ctrl.num_mc_addrs = mc_addr_count;
2637 hw->addr_ctrl.mta_in_use = 0;
2639 /* Clear mta_shadow */
2641 DEBUGOUT(" Clearing MTA\n");
2642 memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow));
2645 /* Update mta_shadow */
2646 for (i = 0; i < mc_addr_count; i++) {
2647 DEBUGOUT(" Adding the multicast addresses:\n");
2648 ixgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq));
2652 for (i = 0; i < hw->mac.mcft_size; i++)
2653 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_MTA(0), i,
2654 hw->mac.mta_shadow[i]);
2656 if (hw->addr_ctrl.mta_in_use > 0)
2657 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL,
2658 IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type);
2660 DEBUGOUT("ixgbe_update_mc_addr_list_generic Complete\n");
2661 return IXGBE_SUCCESS;
2665 * ixgbe_enable_mc_generic - Enable multicast address in RAR
2666 * @hw: pointer to hardware structure
2668 * Enables multicast address in RAR and the use of the multicast hash table.
2670 s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw)
2672 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
2674 DEBUGFUNC("ixgbe_enable_mc_generic");
2676 if (a->mta_in_use > 0)
2677 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE |
2678 hw->mac.mc_filter_type);
2680 return IXGBE_SUCCESS;
2684 * ixgbe_disable_mc_generic - Disable multicast address in RAR
2685 * @hw: pointer to hardware structure
2687 * Disables multicast address in RAR and the use of the multicast hash table.
2689 s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw)
2691 struct ixgbe_addr_filter_info *a = &hw->addr_ctrl;
2693 DEBUGFUNC("ixgbe_disable_mc_generic");
2695 if (a->mta_in_use > 0)
2696 IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type);
2698 return IXGBE_SUCCESS;
2702 * ixgbe_fc_enable_generic - Enable flow control
2703 * @hw: pointer to hardware structure
2705 * Enable flow control according to the current settings.
2707 s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw)
2709 s32 ret_val = IXGBE_SUCCESS;
2710 u32 mflcn_reg, fccfg_reg;
2715 DEBUGFUNC("ixgbe_fc_enable_generic");
2717 /* Validate the water mark configuration */
2718 if (!hw->fc.pause_time) {
2719 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
2723 /* Low water mark of zero causes XOFF floods */
2724 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
2725 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
2726 hw->fc.high_water[i]) {
2727 if (!hw->fc.low_water[i] ||
2728 hw->fc.low_water[i] >= hw->fc.high_water[i]) {
2729 DEBUGOUT("Invalid water mark configuration\n");
2730 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
2736 /* Negotiate the fc mode to use */
2737 ixgbe_fc_autoneg(hw);
2739 /* Disable any previous flow control settings */
2740 mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN);
2741 mflcn_reg &= ~(IXGBE_MFLCN_RPFCE_MASK | IXGBE_MFLCN_RFCE);
2743 fccfg_reg = IXGBE_READ_REG(hw, IXGBE_FCCFG);
2744 fccfg_reg &= ~(IXGBE_FCCFG_TFCE_802_3X | IXGBE_FCCFG_TFCE_PRIORITY);
2747 * The possible values of fc.current_mode are:
2748 * 0: Flow control is completely disabled
2749 * 1: Rx flow control is enabled (we can receive pause frames,
2750 * but not send pause frames).
2751 * 2: Tx flow control is enabled (we can send pause frames but
2752 * we do not support receiving pause frames).
2753 * 3: Both Rx and Tx flow control (symmetric) are enabled.
2756 switch (hw->fc.current_mode) {
2759 * Flow control is disabled by software override or autoneg.
2760 * The code below will actually disable it in the HW.
2763 case ixgbe_fc_rx_pause:
2765 * Rx Flow control is enabled and Tx Flow control is
2766 * disabled by software override. Since there really
2767 * isn't a way to advertise that we are capable of RX
2768 * Pause ONLY, we will advertise that we support both
2769 * symmetric and asymmetric Rx PAUSE. Later, we will
2770 * disable the adapter's ability to send PAUSE frames.
2772 mflcn_reg |= IXGBE_MFLCN_RFCE;
2774 case ixgbe_fc_tx_pause:
2776 * Tx Flow control is enabled, and Rx Flow control is
2777 * disabled by software override.
2779 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
2782 /* Flow control (both Rx and Tx) is enabled by SW override. */
2783 mflcn_reg |= IXGBE_MFLCN_RFCE;
2784 fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X;
2787 ERROR_REPORT1(IXGBE_ERROR_ARGUMENT,
2788 "Flow control param set incorrectly\n");
2789 ret_val = IXGBE_ERR_CONFIG;
2794 /* Set 802.3x based flow control settings. */
2795 mflcn_reg |= IXGBE_MFLCN_DPF;
2796 IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg);
2797 IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg);
2800 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
2801 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
2802 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
2803 hw->fc.high_water[i]) {
2804 fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
2805 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), fcrtl);
2806 fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
2808 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0);
2810 * In order to prevent Tx hangs when the internal Tx
2811 * switch is enabled we must set the high water mark
2812 * to the Rx packet buffer size - 24KB. This allows
2813 * the Tx switch to function even under heavy Rx
2816 fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 24576;
2819 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth);
2822 /* Configure pause time (2 TCs per register) */
2823 reg = hw->fc.pause_time * 0x00010001;
2824 for (i = 0; i < (IXGBE_DCB_MAX_TRAFFIC_CLASS / 2); i++)
2825 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
2827 /* Configure flow control refresh threshold value */
2828 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
2835 * ixgbe_negotiate_fc - Negotiate flow control
2836 * @hw: pointer to hardware structure
2837 * @adv_reg: flow control advertised settings
2838 * @lp_reg: link partner's flow control settings
2839 * @adv_sym: symmetric pause bit in advertisement
2840 * @adv_asm: asymmetric pause bit in advertisement
2841 * @lp_sym: symmetric pause bit in link partner advertisement
2842 * @lp_asm: asymmetric pause bit in link partner advertisement
2844 * Find the intersection between advertised settings and link partner's
2845 * advertised settings
2847 static s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
2848 u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
2850 if ((!(adv_reg)) || (!(lp_reg))) {
2851 ERROR_REPORT3(IXGBE_ERROR_UNSUPPORTED,
2852 "Local or link partner's advertised flow control "
2853 "settings are NULL. Local: %x, link partner: %x\n",
2855 return IXGBE_ERR_FC_NOT_NEGOTIATED;
2858 if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) {
2860 * Now we need to check if the user selected Rx ONLY
2861 * of pause frames. In this case, we had to advertise
2862 * FULL flow control because we could not advertise RX
2863 * ONLY. Hence, we must now check to see if we need to
2864 * turn OFF the TRANSMISSION of PAUSE frames.
2866 if (hw->fc.requested_mode == ixgbe_fc_full) {
2867 hw->fc.current_mode = ixgbe_fc_full;
2868 DEBUGOUT("Flow Control = FULL.\n");
2870 hw->fc.current_mode = ixgbe_fc_rx_pause;
2871 DEBUGOUT("Flow Control=RX PAUSE frames only\n");
2873 } else if (!(adv_reg & adv_sym) && (adv_reg & adv_asm) &&
2874 (lp_reg & lp_sym) && (lp_reg & lp_asm)) {
2875 hw->fc.current_mode = ixgbe_fc_tx_pause;
2876 DEBUGOUT("Flow Control = TX PAUSE frames only.\n");
2877 } else if ((adv_reg & adv_sym) && (adv_reg & adv_asm) &&
2878 !(lp_reg & lp_sym) && (lp_reg & lp_asm)) {
2879 hw->fc.current_mode = ixgbe_fc_rx_pause;
2880 DEBUGOUT("Flow Control = RX PAUSE frames only.\n");
2882 hw->fc.current_mode = ixgbe_fc_none;
2883 DEBUGOUT("Flow Control = NONE.\n");
2885 return IXGBE_SUCCESS;
2889 * ixgbe_fc_autoneg_fiber - Enable flow control on 1 gig fiber
2890 * @hw: pointer to hardware structure
2892 * Enable flow control according on 1 gig fiber.
2894 static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw)
2896 u32 pcs_anadv_reg, pcs_lpab_reg, linkstat;
2897 s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
2900 * On multispeed fiber at 1g, bail out if
2901 * - link is up but AN did not complete, or if
2902 * - link is up and AN completed but timed out
2905 linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
2906 if ((!!(linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
2907 (!!(linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) {
2908 DEBUGOUT("Auto-Negotiation did not complete or timed out\n");
2912 pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
2913 pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
2915 ret_val = ixgbe_negotiate_fc(hw, pcs_anadv_reg,
2916 pcs_lpab_reg, IXGBE_PCS1GANA_SYM_PAUSE,
2917 IXGBE_PCS1GANA_ASM_PAUSE,
2918 IXGBE_PCS1GANA_SYM_PAUSE,
2919 IXGBE_PCS1GANA_ASM_PAUSE);
2926 * ixgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37
2927 * @hw: pointer to hardware structure
2929 * Enable flow control according to IEEE clause 37.
2931 static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw)
2933 u32 links2, anlp1_reg, autoc_reg, links;
2934 s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
2937 * On backplane, bail out if
2938 * - backplane autoneg was not completed, or if
2939 * - we are 82599 and link partner is not AN enabled
2941 links = IXGBE_READ_REG(hw, IXGBE_LINKS);
2942 if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) {
2943 DEBUGOUT("Auto-Negotiation did not complete\n");
2947 if (hw->mac.type == ixgbe_mac_82599EB) {
2948 links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2);
2949 if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) {
2950 DEBUGOUT("Link partner is not AN enabled\n");
2955 * Read the 10g AN autoc and LP ability registers and resolve
2956 * local flow control settings accordingly
2958 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2959 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2961 ret_val = ixgbe_negotiate_fc(hw, autoc_reg,
2962 anlp1_reg, IXGBE_AUTOC_SYM_PAUSE, IXGBE_AUTOC_ASM_PAUSE,
2963 IXGBE_ANLP1_SYM_PAUSE, IXGBE_ANLP1_ASM_PAUSE);
2970 * ixgbe_fc_autoneg_copper - Enable flow control IEEE clause 37
2971 * @hw: pointer to hardware structure
2973 * Enable flow control according to IEEE clause 37.
2975 static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw)
2977 u16 technology_ability_reg = 0;
2978 u16 lp_technology_ability_reg = 0;
2980 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT,
2981 IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
2982 &technology_ability_reg);
2983 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_LP,
2984 IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
2985 &lp_technology_ability_reg);
2987 return ixgbe_negotiate_fc(hw, (u32)technology_ability_reg,
2988 (u32)lp_technology_ability_reg,
2989 IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE,
2990 IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE);
2994 * ixgbe_fc_autoneg - Configure flow control
2995 * @hw: pointer to hardware structure
2997 * Compares our advertised flow control capabilities to those advertised by
2998 * our link partner, and determines the proper flow control mode to use.
3000 void ixgbe_fc_autoneg(struct ixgbe_hw *hw)
3002 s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
3003 ixgbe_link_speed speed;
3006 DEBUGFUNC("ixgbe_fc_autoneg");
3009 * AN should have completed when the cable was plugged in.
3010 * Look for reasons to bail out. Bail out if:
3011 * - FC autoneg is disabled, or if
3014 if (hw->fc.disable_fc_autoneg) {
3015 ERROR_REPORT1(IXGBE_ERROR_UNSUPPORTED,
3016 "Flow control autoneg is disabled");
3020 hw->mac.ops.check_link(hw, &speed, &link_up, FALSE);
3022 ERROR_REPORT1(IXGBE_ERROR_SOFTWARE, "The link is down");
3026 switch (hw->phy.media_type) {
3027 /* Autoneg flow control on fiber adapters */
3028 case ixgbe_media_type_fiber_fixed:
3029 case ixgbe_media_type_fiber_qsfp:
3030 case ixgbe_media_type_fiber:
3031 if (speed == IXGBE_LINK_SPEED_1GB_FULL)
3032 ret_val = ixgbe_fc_autoneg_fiber(hw);
3035 /* Autoneg flow control on backplane adapters */
3036 case ixgbe_media_type_backplane:
3037 ret_val = ixgbe_fc_autoneg_backplane(hw);
3040 /* Autoneg flow control on copper adapters */
3041 case ixgbe_media_type_copper:
3042 if (ixgbe_device_supports_autoneg_fc(hw))
3043 ret_val = ixgbe_fc_autoneg_copper(hw);
3051 if (ret_val == IXGBE_SUCCESS) {
3052 hw->fc.fc_was_autonegged = TRUE;
3054 hw->fc.fc_was_autonegged = FALSE;
3055 hw->fc.current_mode = hw->fc.requested_mode;
3060 * ixgbe_pcie_timeout_poll - Return number of times to poll for completion
3061 * @hw: pointer to hardware structure
3063 * System-wide timeout range is encoded in PCIe Device Control2 register.
3065 * Add 10% to specified maximum and return the number of times to poll for
3066 * completion timeout, in units of 100 microsec. Never return less than
3067 * 800 = 80 millisec.
3069 static u32 ixgbe_pcie_timeout_poll(struct ixgbe_hw *hw)
3074 devctl2 = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_CONTROL2);
3075 devctl2 &= IXGBE_PCIDEVCTRL2_TIMEO_MASK;
3078 case IXGBE_PCIDEVCTRL2_65_130ms:
3079 pollcnt = 1300; /* 130 millisec */
3081 case IXGBE_PCIDEVCTRL2_260_520ms:
3082 pollcnt = 5200; /* 520 millisec */
3084 case IXGBE_PCIDEVCTRL2_1_2s:
3085 pollcnt = 20000; /* 2 sec */
3087 case IXGBE_PCIDEVCTRL2_4_8s:
3088 pollcnt = 80000; /* 8 sec */
3090 case IXGBE_PCIDEVCTRL2_17_34s:
3091 pollcnt = 34000; /* 34 sec */
3093 case IXGBE_PCIDEVCTRL2_50_100us: /* 100 microsecs */
3094 case IXGBE_PCIDEVCTRL2_1_2ms: /* 2 millisecs */
3095 case IXGBE_PCIDEVCTRL2_16_32ms: /* 32 millisec */
3096 case IXGBE_PCIDEVCTRL2_16_32ms_def: /* 32 millisec default */
3098 pollcnt = 800; /* 80 millisec minimum */
3102 /* add 10% to spec maximum */
3103 return (pollcnt * 11) / 10;
3107 * ixgbe_disable_pcie_master - Disable PCI-express master access
3108 * @hw: pointer to hardware structure
3110 * Disables PCI-Express master access and verifies there are no pending
3111 * requests. IXGBE_ERR_MASTER_REQUESTS_PENDING is returned if master disable
3112 * bit hasn't caused the master requests to be disabled, else IXGBE_SUCCESS
3113 * is returned signifying master requests disabled.
3115 s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
3117 s32 status = IXGBE_SUCCESS;
3121 DEBUGFUNC("ixgbe_disable_pcie_master");
3123 /* Always set this bit to ensure any future transactions are blocked */
3124 IXGBE_WRITE_REG(hw, IXGBE_CTRL, IXGBE_CTRL_GIO_DIS);
3126 /* Exit if master requests are blocked */
3127 if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO) ||
3128 IXGBE_REMOVED(hw->hw_addr))
3131 /* Poll for master request bit to clear */
3132 for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) {
3134 if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO))
3139 * Two consecutive resets are required via CTRL.RST per datasheet
3140 * 5.2.5.3.2 Master Disable. We set a flag to inform the reset routine
3141 * of this need. The first reset prevents new master requests from
3142 * being issued by our device. We then must wait 1usec or more for any
3143 * remaining completions from the PCIe bus to trickle in, and then reset
3144 * again to clear out any effects they may have had on our device.
3146 DEBUGOUT("GIO Master Disable bit didn't clear - requesting resets\n");
3147 hw->mac.flags |= IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
3150 * Before proceeding, make sure that the PCIe block does not have
3151 * transactions pending.
3153 poll = ixgbe_pcie_timeout_poll(hw);
3154 for (i = 0; i < poll; i++) {
3156 value = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_STATUS);
3157 if (IXGBE_REMOVED(hw->hw_addr))
3159 if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING))
3163 ERROR_REPORT1(IXGBE_ERROR_POLLING,
3164 "PCIe transaction pending bit also did not clear.\n");
3165 status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
3172 * ixgbe_acquire_swfw_sync - Acquire SWFW semaphore
3173 * @hw: pointer to hardware structure
3174 * @mask: Mask to specify which semaphore to acquire
3176 * Acquires the SWFW semaphore through the GSSR register for the specified
3177 * function (CSR, PHY0, PHY1, EEPROM, Flash)
3179 s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask)
3183 u32 fwmask = mask << 5;
3187 DEBUGFUNC("ixgbe_acquire_swfw_sync");
3189 for (i = 0; i < timeout; i++) {
3191 * SW NVM semaphore bit is used for access to all
3192 * SW_FW_SYNC bits (not just NVM)
3194 if (ixgbe_get_eeprom_semaphore(hw))
3195 return IXGBE_ERR_SWFW_SYNC;
3197 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
3198 if (!(gssr & (fwmask | swmask))) {
3200 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
3201 ixgbe_release_eeprom_semaphore(hw);
3202 return IXGBE_SUCCESS;
3204 /* Resource is currently in use by FW or SW */
3205 ixgbe_release_eeprom_semaphore(hw);
3210 /* If time expired clear the bits holding the lock and retry */
3211 if (gssr & (fwmask | swmask))
3212 ixgbe_release_swfw_sync(hw, gssr & (fwmask | swmask));
3215 return IXGBE_ERR_SWFW_SYNC;
3219 * ixgbe_release_swfw_sync - Release SWFW semaphore
3220 * @hw: pointer to hardware structure
3221 * @mask: Mask to specify which semaphore to release
3223 * Releases the SWFW semaphore through the GSSR register for the specified
3224 * function (CSR, PHY0, PHY1, EEPROM, Flash)
3226 void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u32 mask)
3231 DEBUGFUNC("ixgbe_release_swfw_sync");
3233 ixgbe_get_eeprom_semaphore(hw);
3235 gssr = IXGBE_READ_REG(hw, IXGBE_GSSR);
3237 IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr);
3239 ixgbe_release_eeprom_semaphore(hw);
3243 * ixgbe_disable_sec_rx_path_generic - Stops the receive data path
3244 * @hw: pointer to hardware structure
3246 * Stops the receive data path and waits for the HW to internally empty
3247 * the Rx security block
3249 s32 ixgbe_disable_sec_rx_path_generic(struct ixgbe_hw *hw)
3251 #define IXGBE_MAX_SECRX_POLL 40
3256 DEBUGFUNC("ixgbe_disable_sec_rx_path_generic");
3259 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
3260 secrxreg |= IXGBE_SECRXCTRL_RX_DIS;
3261 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
3262 for (i = 0; i < IXGBE_MAX_SECRX_POLL; i++) {
3263 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
3264 if (secrxreg & IXGBE_SECRXSTAT_SECRX_RDY)
3267 /* Use interrupt-safe sleep just in case */
3271 /* For informational purposes only */
3272 if (i >= IXGBE_MAX_SECRX_POLL)
3273 DEBUGOUT("Rx unit being enabled before security "
3274 "path fully disabled. Continuing with init.\n");
3276 return IXGBE_SUCCESS;
3280 * prot_autoc_read_generic - Hides MAC differences needed for AUTOC read
3281 * @hw: pointer to hardware structure
3282 * @reg_val: Value we read from AUTOC
3284 * The default case requires no protection so just to the register read.
3286 s32 prot_autoc_read_generic(struct ixgbe_hw *hw, bool *locked, u32 *reg_val)
3289 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
3290 return IXGBE_SUCCESS;
3294 * prot_autoc_write_generic - Hides MAC differences needed for AUTOC write
3295 * @hw: pointer to hardware structure
3296 * @reg_val: value to write to AUTOC
3297 * @locked: bool to indicate whether the SW/FW lock was already taken by
3300 * The default case requires no protection so just to the register write.
3302 s32 prot_autoc_write_generic(struct ixgbe_hw *hw, u32 reg_val, bool locked)
3304 UNREFERENCED_1PARAMETER(locked);
3306 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_val);
3307 return IXGBE_SUCCESS;
3311 * ixgbe_enable_sec_rx_path_generic - Enables the receive data path
3312 * @hw: pointer to hardware structure
3314 * Enables the receive data path.
3316 s32 ixgbe_enable_sec_rx_path_generic(struct ixgbe_hw *hw)
3320 DEBUGFUNC("ixgbe_enable_sec_rx_path_generic");
3322 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
3323 secrxreg &= ~IXGBE_SECRXCTRL_RX_DIS;
3324 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
3325 IXGBE_WRITE_FLUSH(hw);
3327 return IXGBE_SUCCESS;
3331 * ixgbe_enable_rx_dma_generic - Enable the Rx DMA unit
3332 * @hw: pointer to hardware structure
3333 * @regval: register value to write to RXCTRL
3335 * Enables the Rx DMA unit
3337 s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval)
3339 DEBUGFUNC("ixgbe_enable_rx_dma_generic");
3341 if (regval & IXGBE_RXCTRL_RXEN)
3342 ixgbe_enable_rx(hw);
3344 ixgbe_disable_rx(hw);
3346 return IXGBE_SUCCESS;
3350 * ixgbe_blink_led_start_generic - Blink LED based on index.
3351 * @hw: pointer to hardware structure
3352 * @index: led number to blink
3354 s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
3356 ixgbe_link_speed speed = 0;
3359 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
3360 s32 ret_val = IXGBE_SUCCESS;
3361 bool locked = FALSE;
3363 DEBUGFUNC("ixgbe_blink_led_start_generic");
3366 * Link must be up to auto-blink the LEDs;
3367 * Force it if link is down.
3369 hw->mac.ops.check_link(hw, &speed, &link_up, FALSE);
3372 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
3373 if (ret_val != IXGBE_SUCCESS)
3376 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
3377 autoc_reg |= IXGBE_AUTOC_FLU;
3379 ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked);
3380 if (ret_val != IXGBE_SUCCESS)
3383 IXGBE_WRITE_FLUSH(hw);
3387 led_reg &= ~IXGBE_LED_MODE_MASK(index);
3388 led_reg |= IXGBE_LED_BLINK(index);
3389 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
3390 IXGBE_WRITE_FLUSH(hw);
3397 * ixgbe_blink_led_stop_generic - Stop blinking LED based on index.
3398 * @hw: pointer to hardware structure
3399 * @index: led number to stop blinking
3401 s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
3404 u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
3405 s32 ret_val = IXGBE_SUCCESS;
3406 bool locked = FALSE;
3408 DEBUGFUNC("ixgbe_blink_led_stop_generic");
3410 ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
3411 if (ret_val != IXGBE_SUCCESS)
3414 autoc_reg &= ~IXGBE_AUTOC_FLU;
3415 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
3417 ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked);
3418 if (ret_val != IXGBE_SUCCESS)
3421 led_reg &= ~IXGBE_LED_MODE_MASK(index);
3422 led_reg &= ~IXGBE_LED_BLINK(index);
3423 led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
3424 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg);
3425 IXGBE_WRITE_FLUSH(hw);
3432 * ixgbe_get_san_mac_addr_offset - Get SAN MAC address offset from the EEPROM
3433 * @hw: pointer to hardware structure
3434 * @san_mac_offset: SAN MAC address offset
3436 * This function will read the EEPROM location for the SAN MAC address
3437 * pointer, and returns the value at that location. This is used in both
3438 * get and set mac_addr routines.
3440 static s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw,
3441 u16 *san_mac_offset)
3445 DEBUGFUNC("ixgbe_get_san_mac_addr_offset");
3448 * First read the EEPROM pointer to see if the MAC addresses are
3451 ret_val = hw->eeprom.ops.read(hw, IXGBE_SAN_MAC_ADDR_PTR,
3454 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
3455 "eeprom at offset %d failed",
3456 IXGBE_SAN_MAC_ADDR_PTR);
3463 * ixgbe_get_san_mac_addr_generic - SAN MAC address retrieval from the EEPROM
3464 * @hw: pointer to hardware structure
3465 * @san_mac_addr: SAN MAC address
3467 * Reads the SAN MAC address from the EEPROM, if it's available. This is
3468 * per-port, so set_lan_id() must be called before reading the addresses.
3469 * set_lan_id() is called by identify_sfp(), but this cannot be relied
3470 * upon for non-SFP connections, so we must call it here.
3472 s32 ixgbe_get_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr)
3474 u16 san_mac_data, san_mac_offset;
3478 DEBUGFUNC("ixgbe_get_san_mac_addr_generic");
3481 * First read the EEPROM pointer to see if the MAC addresses are
3482 * available. If they're not, no point in calling set_lan_id() here.
3484 ret_val = ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset);
3485 if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF)
3486 goto san_mac_addr_out;
3488 /* make sure we know which port we need to program */
3489 hw->mac.ops.set_lan_id(hw);
3490 /* apply the port offset to the address offset */
3491 (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) :
3492 (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET);
3493 for (i = 0; i < 3; i++) {
3494 ret_val = hw->eeprom.ops.read(hw, san_mac_offset,
3497 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
3498 "eeprom read at offset %d failed",
3500 goto san_mac_addr_out;
3502 san_mac_addr[i * 2] = (u8)(san_mac_data);
3503 san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8);
3506 return IXGBE_SUCCESS;
3510 * No addresses available in this EEPROM. It's not an
3511 * error though, so just wipe the local address and return.
3513 for (i = 0; i < 6; i++)
3514 san_mac_addr[i] = 0xFF;
3515 return IXGBE_SUCCESS;
3519 * ixgbe_set_san_mac_addr_generic - Write the SAN MAC address to the EEPROM
3520 * @hw: pointer to hardware structure
3521 * @san_mac_addr: SAN MAC address
3523 * Write a SAN MAC address to the EEPROM.
3525 s32 ixgbe_set_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr)
3528 u16 san_mac_data, san_mac_offset;
3531 DEBUGFUNC("ixgbe_set_san_mac_addr_generic");
3533 /* Look for SAN mac address pointer. If not defined, return */
3534 ret_val = ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset);
3535 if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF)
3536 return IXGBE_ERR_NO_SAN_ADDR_PTR;
3538 /* Make sure we know which port we need to write */
3539 hw->mac.ops.set_lan_id(hw);
3540 /* Apply the port offset to the address offset */
3541 (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) :
3542 (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET);
3544 for (i = 0; i < 3; i++) {
3545 san_mac_data = (u16)((u16)(san_mac_addr[i * 2 + 1]) << 8);
3546 san_mac_data |= (u16)(san_mac_addr[i * 2]);
3547 hw->eeprom.ops.write(hw, san_mac_offset, san_mac_data);
3551 return IXGBE_SUCCESS;
3555 * ixgbe_get_pcie_msix_count_generic - Gets MSI-X vector count
3556 * @hw: pointer to hardware structure
3558 * Read PCIe configuration space, and get the MSI-X vector count from
3559 * the capabilities table.
3561 u16 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw)
3567 switch (hw->mac.type) {
3568 case ixgbe_mac_82598EB:
3569 pcie_offset = IXGBE_PCIE_MSIX_82598_CAPS;
3570 max_msix_count = IXGBE_MAX_MSIX_VECTORS_82598;
3572 case ixgbe_mac_82599EB:
3573 case ixgbe_mac_X540:
3574 case ixgbe_mac_X550:
3575 case ixgbe_mac_X550EM_x:
3576 case ixgbe_mac_X550EM_a:
3577 pcie_offset = IXGBE_PCIE_MSIX_82599_CAPS;
3578 max_msix_count = IXGBE_MAX_MSIX_VECTORS_82599;
3584 DEBUGFUNC("ixgbe_get_pcie_msix_count_generic");
3585 msix_count = IXGBE_READ_PCIE_WORD(hw, pcie_offset);
3586 if (IXGBE_REMOVED(hw->hw_addr))
3588 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
3590 /* MSI-X count is zero-based in HW */
3593 if (msix_count > max_msix_count)
3594 msix_count = max_msix_count;
3600 * ixgbe_insert_mac_addr_generic - Find a RAR for this mac address
3601 * @hw: pointer to hardware structure
3602 * @addr: Address to put into receive address register
3603 * @vmdq: VMDq pool to assign
3605 * Puts an ethernet address into a receive address register, or
3606 * finds the rar that it is aleady in; adds to the pool list
3608 s32 ixgbe_insert_mac_addr_generic(struct ixgbe_hw *hw, u8 *addr, u32 vmdq)
3610 static const u32 NO_EMPTY_RAR_FOUND = 0xFFFFFFFF;
3611 u32 first_empty_rar = NO_EMPTY_RAR_FOUND;
3613 u32 rar_low, rar_high;
3614 u32 addr_low, addr_high;
3616 DEBUGFUNC("ixgbe_insert_mac_addr_generic");
3618 /* swap bytes for HW little endian */
3619 addr_low = addr[0] | (addr[1] << 8)
3622 addr_high = addr[4] | (addr[5] << 8);
3625 * Either find the mac_id in rar or find the first empty space.
3626 * rar_highwater points to just after the highest currently used
3627 * rar in order to shorten the search. It grows when we add a new
3630 for (rar = 0; rar < hw->mac.rar_highwater; rar++) {
3631 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
3633 if (((IXGBE_RAH_AV & rar_high) == 0)
3634 && first_empty_rar == NO_EMPTY_RAR_FOUND) {
3635 first_empty_rar = rar;
3636 } else if ((rar_high & 0xFFFF) == addr_high) {
3637 rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(rar));
3638 if (rar_low == addr_low)
3639 break; /* found it already in the rars */
3643 if (rar < hw->mac.rar_highwater) {
3644 /* already there so just add to the pool bits */
3645 ixgbe_set_vmdq(hw, rar, vmdq);
3646 } else if (first_empty_rar != NO_EMPTY_RAR_FOUND) {
3647 /* stick it into first empty RAR slot we found */
3648 rar = first_empty_rar;
3649 ixgbe_set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
3650 } else if (rar == hw->mac.rar_highwater) {
3651 /* add it to the top of the list and inc the highwater mark */
3652 ixgbe_set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV);
3653 hw->mac.rar_highwater++;
3654 } else if (rar >= hw->mac.num_rar_entries) {
3655 return IXGBE_ERR_INVALID_MAC_ADDR;
3659 * If we found rar[0], make sure the default pool bit (we use pool 0)
3660 * remains cleared to be sure default pool packets will get delivered
3663 ixgbe_clear_vmdq(hw, rar, 0);
3669 * ixgbe_clear_vmdq_generic - Disassociate a VMDq pool index from a rx address
3670 * @hw: pointer to hardware struct
3671 * @rar: receive address register index to disassociate
3672 * @vmdq: VMDq pool index to remove from the rar
3674 s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
3676 u32 mpsar_lo, mpsar_hi;
3677 u32 rar_entries = hw->mac.num_rar_entries;
3679 DEBUGFUNC("ixgbe_clear_vmdq_generic");
3681 /* Make sure we are using a valid rar index range */
3682 if (rar >= rar_entries) {
3683 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
3684 "RAR index %d is out of range.\n", rar);
3685 return IXGBE_ERR_INVALID_ARGUMENT;
3688 mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
3689 mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
3691 if (IXGBE_REMOVED(hw->hw_addr))
3694 if (!mpsar_lo && !mpsar_hi)
3697 if (vmdq == IXGBE_CLEAR_VMDQ_ALL) {
3699 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
3703 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
3706 } else if (vmdq < 32) {
3707 mpsar_lo &= ~(1 << vmdq);
3708 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo);
3710 mpsar_hi &= ~(1 << (vmdq - 32));
3711 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi);
3714 /* was that the last pool using this rar? */
3715 if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0)
3716 hw->mac.ops.clear_rar(hw, rar);
3718 return IXGBE_SUCCESS;
3722 * ixgbe_set_vmdq_generic - Associate a VMDq pool index with a rx address
3723 * @hw: pointer to hardware struct
3724 * @rar: receive address register index to associate with a VMDq index
3725 * @vmdq: VMDq pool index
3727 s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
3730 u32 rar_entries = hw->mac.num_rar_entries;
3732 DEBUGFUNC("ixgbe_set_vmdq_generic");
3734 /* Make sure we are using a valid rar index range */
3735 if (rar >= rar_entries) {
3736 ERROR_REPORT2(IXGBE_ERROR_ARGUMENT,
3737 "RAR index %d is out of range.\n", rar);
3738 return IXGBE_ERR_INVALID_ARGUMENT;
3742 mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar));
3744 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar);
3746 mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar));
3747 mpsar |= 1 << (vmdq - 32);
3748 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar);
3750 return IXGBE_SUCCESS;
3754 * This function should only be involved in the IOV mode.
3755 * In IOV mode, Default pool is next pool after the number of
3756 * VFs advertized and not 0.
3757 * MPSAR table needs to be updated for SAN_MAC RAR [hw->mac.san_mac_rar_index]
3759 * ixgbe_set_vmdq_san_mac - Associate default VMDq pool index with a rx address
3760 * @hw: pointer to hardware struct
3761 * @vmdq: VMDq pool index
3763 s32 ixgbe_set_vmdq_san_mac_generic(struct ixgbe_hw *hw, u32 vmdq)
3765 u32 rar = hw->mac.san_mac_rar_index;
3767 DEBUGFUNC("ixgbe_set_vmdq_san_mac");
3770 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 1 << vmdq);
3771 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0);
3773 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0);
3774 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 1 << (vmdq - 32));
3777 return IXGBE_SUCCESS;
3781 * ixgbe_init_uta_tables_generic - Initialize the Unicast Table Array
3782 * @hw: pointer to hardware structure
3784 s32 ixgbe_init_uta_tables_generic(struct ixgbe_hw *hw)
3788 DEBUGFUNC("ixgbe_init_uta_tables_generic");
3789 DEBUGOUT(" Clearing UTA\n");
3791 for (i = 0; i < 128; i++)
3792 IXGBE_WRITE_REG(hw, IXGBE_UTA(i), 0);
3794 return IXGBE_SUCCESS;
3798 * ixgbe_find_vlvf_slot - find the vlanid or the first empty slot
3799 * @hw: pointer to hardware structure
3800 * @vlan: VLAN id to write to VLAN filter
3802 * return the VLVF index where this VLAN id should be placed
3805 s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan)
3808 u32 first_empty_slot = 0;
3811 /* short cut the special case */
3816 * Search for the vlan id in the VLVF entries. Save off the first empty
3817 * slot found along the way
3819 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) {
3820 bits = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex));
3821 if (!bits && !(first_empty_slot))
3822 first_empty_slot = regindex;
3823 else if ((bits & 0x0FFF) == vlan)
3828 * If regindex is less than IXGBE_VLVF_ENTRIES, then we found the vlan
3829 * in the VLVF. Else use the first empty VLVF register for this
3832 if (regindex >= IXGBE_VLVF_ENTRIES) {
3833 if (first_empty_slot)
3834 regindex = first_empty_slot;
3836 ERROR_REPORT1(IXGBE_ERROR_SOFTWARE,
3837 "No space in VLVF.\n");
3838 regindex = IXGBE_ERR_NO_SPACE;
3846 * ixgbe_set_vfta_generic - Set VLAN filter table
3847 * @hw: pointer to hardware structure
3848 * @vlan: VLAN id to write to VLAN filter
3849 * @vind: VMDq output index that maps queue to VLAN id in VFVFB
3850 * @vlan_on: boolean flag to turn on/off VLAN in VFVF
3852 * Turn on/off specified VLAN in the VLAN filter table.
3854 s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
3861 s32 ret_val = IXGBE_SUCCESS;
3862 bool vfta_changed = FALSE;
3864 DEBUGFUNC("ixgbe_set_vfta_generic");
3867 return IXGBE_ERR_PARAM;
3870 * this is a 2 part operation - first the VFTA, then the
3871 * VLVF and VLVFB if VT Mode is set
3872 * We don't write the VFTA until we know the VLVF part succeeded.
3876 * The VFTA is a bitstring made up of 128 32-bit registers
3877 * that enable the particular VLAN id, much like the MTA:
3878 * bits[11-5]: which register
3879 * bits[4-0]: which bit in the register
3881 regindex = (vlan >> 5) & 0x7F;
3882 bitindex = vlan & 0x1F;
3883 targetbit = (1 << bitindex);
3884 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
3887 if (!(vfta & targetbit)) {
3889 vfta_changed = TRUE;
3892 if ((vfta & targetbit)) {
3894 vfta_changed = TRUE;
3899 * Call ixgbe_set_vlvf_generic to set VLVFB and VLVF
3901 ret_val = ixgbe_set_vlvf_generic(hw, vlan, vind, vlan_on,
3903 if (ret_val != IXGBE_SUCCESS)
3907 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), vfta);
3909 return IXGBE_SUCCESS;
3913 * ixgbe_set_vlvf_generic - Set VLAN Pool Filter
3914 * @hw: pointer to hardware structure
3915 * @vlan: VLAN id to write to VLAN filter
3916 * @vind: VMDq output index that maps queue to VLAN id in VFVFB
3917 * @vlan_on: boolean flag to turn on/off VLAN in VFVF
3918 * @vfta_changed: pointer to boolean flag which indicates whether VFTA
3921 * Turn on/off specified bit in VLVF table.
3923 s32 ixgbe_set_vlvf_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
3924 bool vlan_on, bool *vfta_changed)
3928 DEBUGFUNC("ixgbe_set_vlvf_generic");
3931 return IXGBE_ERR_PARAM;
3933 /* If VT Mode is set
3935 * make sure the vlan is in VLVF
3936 * set the vind bit in the matching VLVFB
3938 * clear the pool bit and possibly the vind
3940 vt = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
3941 if (vt & IXGBE_VT_CTL_VT_ENABLE) {
3945 vlvf_index = ixgbe_find_vlvf_slot(hw, vlan);
3950 /* set the pool bit */
3952 bits = IXGBE_READ_REG(hw,
3953 IXGBE_VLVFB(vlvf_index * 2));
3954 bits |= (1 << vind);
3956 IXGBE_VLVFB(vlvf_index * 2),
3959 bits = IXGBE_READ_REG(hw,
3960 IXGBE_VLVFB((vlvf_index * 2) + 1));
3961 bits |= (1 << (vind - 32));
3963 IXGBE_VLVFB((vlvf_index * 2) + 1),
3967 /* clear the pool bit */
3969 bits = IXGBE_READ_REG(hw,
3970 IXGBE_VLVFB(vlvf_index * 2));
3971 bits &= ~(1 << vind);
3973 IXGBE_VLVFB(vlvf_index * 2),
3975 bits |= IXGBE_READ_REG(hw,
3976 IXGBE_VLVFB((vlvf_index * 2) + 1));
3978 bits = IXGBE_READ_REG(hw,
3979 IXGBE_VLVFB((vlvf_index * 2) + 1));
3980 bits &= ~(1 << (vind - 32));
3982 IXGBE_VLVFB((vlvf_index * 2) + 1),
3984 bits |= IXGBE_READ_REG(hw,
3985 IXGBE_VLVFB(vlvf_index * 2));
3990 * If there are still bits set in the VLVFB registers
3991 * for the VLAN ID indicated we need to see if the
3992 * caller is requesting that we clear the VFTA entry bit.
3993 * If the caller has requested that we clear the VFTA
3994 * entry bit but there are still pools/VFs using this VLAN
3995 * ID entry then ignore the request. We're not worried
3996 * about the case where we're turning the VFTA VLAN ID
3997 * entry bit on, only when requested to turn it off as
3998 * there may be multiple pools and/or VFs using the
3999 * VLAN ID entry. In that case we cannot clear the
4000 * VFTA bit until all pools/VFs using that VLAN ID have also
4001 * been cleared. This will be indicated by "bits" being
4005 IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index),
4006 (IXGBE_VLVF_VIEN | vlan));
4007 if ((!vlan_on) && (vfta_changed != NULL)) {
4008 /* someone wants to clear the vfta entry
4009 * but some pools/VFs are still using it.
4011 *vfta_changed = FALSE;
4014 IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), 0);
4017 return IXGBE_SUCCESS;
4021 * ixgbe_clear_vfta_generic - Clear VLAN filter table
4022 * @hw: pointer to hardware structure
4024 * Clears the VLAN filer table, and the VMDq index associated with the filter
4026 s32 ixgbe_clear_vfta_generic(struct ixgbe_hw *hw)
4030 DEBUGFUNC("ixgbe_clear_vfta_generic");
4032 for (offset = 0; offset < hw->mac.vft_size; offset++)
4033 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
4035 for (offset = 0; offset < IXGBE_VLVF_ENTRIES; offset++) {
4036 IXGBE_WRITE_REG(hw, IXGBE_VLVF(offset), 0);
4037 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset * 2), 0);
4038 IXGBE_WRITE_REG(hw, IXGBE_VLVFB((offset * 2) + 1), 0);
4041 return IXGBE_SUCCESS;
4045 * ixgbe_check_mac_link_generic - Determine link and speed status
4046 * @hw: pointer to hardware structure
4047 * @speed: pointer to link speed
4048 * @link_up: TRUE when link is up
4049 * @link_up_wait_to_complete: bool used to wait for link up or not
4051 * Reads the links register to determine if link is up and the current speed
4053 s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
4054 bool *link_up, bool link_up_wait_to_complete)
4056 u32 links_reg, links_orig;
4059 DEBUGFUNC("ixgbe_check_mac_link_generic");
4061 /* clear the old state */
4062 links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS);
4064 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
4066 if (links_orig != links_reg) {
4067 DEBUGOUT2("LINKS changed from %08X to %08X\n",
4068 links_orig, links_reg);
4071 if (link_up_wait_to_complete) {
4072 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
4073 if (links_reg & IXGBE_LINKS_UP) {
4080 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
4083 if (links_reg & IXGBE_LINKS_UP)
4089 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
4090 case IXGBE_LINKS_SPEED_10G_82599:
4091 *speed = IXGBE_LINK_SPEED_10GB_FULL;
4092 if (hw->mac.type >= ixgbe_mac_X550) {
4093 if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
4094 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
4097 case IXGBE_LINKS_SPEED_1G_82599:
4098 *speed = IXGBE_LINK_SPEED_1GB_FULL;
4100 case IXGBE_LINKS_SPEED_100_82599:
4101 *speed = IXGBE_LINK_SPEED_100_FULL;
4102 if (hw->mac.type >= ixgbe_mac_X550) {
4103 if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
4104 *speed = IXGBE_LINK_SPEED_5GB_FULL;
4108 *speed = IXGBE_LINK_SPEED_UNKNOWN;
4111 return IXGBE_SUCCESS;
4115 * ixgbe_get_wwn_prefix_generic - Get alternative WWNN/WWPN prefix from
4117 * @hw: pointer to hardware structure
4118 * @wwnn_prefix: the alternative WWNN prefix
4119 * @wwpn_prefix: the alternative WWPN prefix
4121 * This function will read the EEPROM from the alternative SAN MAC address
4122 * block to check the support for the alternative WWNN/WWPN prefix support.
4124 s32 ixgbe_get_wwn_prefix_generic(struct ixgbe_hw *hw, u16 *wwnn_prefix,
4128 u16 alt_san_mac_blk_offset;
4130 DEBUGFUNC("ixgbe_get_wwn_prefix_generic");
4132 /* clear output first */
4133 *wwnn_prefix = 0xFFFF;
4134 *wwpn_prefix = 0xFFFF;
4136 /* check if alternative SAN MAC is supported */
4137 offset = IXGBE_ALT_SAN_MAC_ADDR_BLK_PTR;
4138 if (hw->eeprom.ops.read(hw, offset, &alt_san_mac_blk_offset))
4139 goto wwn_prefix_err;
4141 if ((alt_san_mac_blk_offset == 0) ||
4142 (alt_san_mac_blk_offset == 0xFFFF))
4143 goto wwn_prefix_out;
4145 /* check capability in alternative san mac address block */
4146 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET;
4147 if (hw->eeprom.ops.read(hw, offset, &caps))
4148 goto wwn_prefix_err;
4149 if (!(caps & IXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN))
4150 goto wwn_prefix_out;
4152 /* get the corresponding prefix for WWNN/WWPN */
4153 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET;
4154 if (hw->eeprom.ops.read(hw, offset, wwnn_prefix)) {
4155 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
4156 "eeprom read at offset %d failed", offset);
4159 offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET;
4160 if (hw->eeprom.ops.read(hw, offset, wwpn_prefix))
4161 goto wwn_prefix_err;
4164 return IXGBE_SUCCESS;
4167 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
4168 "eeprom read at offset %d failed", offset);
4169 return IXGBE_SUCCESS;
4173 * ixgbe_get_fcoe_boot_status_generic - Get FCOE boot status from EEPROM
4174 * @hw: pointer to hardware structure
4175 * @bs: the fcoe boot status
4177 * This function will read the FCOE boot status from the iSCSI FCOE block
4179 s32 ixgbe_get_fcoe_boot_status_generic(struct ixgbe_hw *hw, u16 *bs)
4181 u16 offset, caps, flags;
4184 DEBUGFUNC("ixgbe_get_fcoe_boot_status_generic");
4186 /* clear output first */
4187 *bs = ixgbe_fcoe_bootstatus_unavailable;
4189 /* check if FCOE IBA block is present */
4190 offset = IXGBE_FCOE_IBA_CAPS_BLK_PTR;
4191 status = hw->eeprom.ops.read(hw, offset, &caps);
4192 if (status != IXGBE_SUCCESS)
4195 if (!(caps & IXGBE_FCOE_IBA_CAPS_FCOE))
4198 /* check if iSCSI FCOE block is populated */
4199 status = hw->eeprom.ops.read(hw, IXGBE_ISCSI_FCOE_BLK_PTR, &offset);
4200 if (status != IXGBE_SUCCESS)
4203 if ((offset == 0) || (offset == 0xFFFF))
4206 /* read fcoe flags in iSCSI FCOE block */
4207 offset = offset + IXGBE_ISCSI_FCOE_FLAGS_OFFSET;
4208 status = hw->eeprom.ops.read(hw, offset, &flags);
4209 if (status != IXGBE_SUCCESS)
4212 if (flags & IXGBE_ISCSI_FCOE_FLAGS_ENABLE)
4213 *bs = ixgbe_fcoe_bootstatus_enabled;
4215 *bs = ixgbe_fcoe_bootstatus_disabled;
4222 * ixgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing
4223 * @hw: pointer to hardware structure
4224 * @enable: enable or disable switch for anti-spoofing
4225 * @pf: Physical Function pool - do not enable anti-spoofing for the PF
4228 void ixgbe_set_mac_anti_spoofing(struct ixgbe_hw *hw, bool enable, int pf)
4231 int pf_target_reg = pf >> 3;
4232 int pf_target_shift = pf % 8;
4235 if (hw->mac.type == ixgbe_mac_82598EB)
4239 pfvfspoof = IXGBE_SPOOF_MACAS_MASK;
4242 * PFVFSPOOF register array is size 8 with 8 bits assigned to
4243 * MAC anti-spoof enables in each register array element.
4245 for (j = 0; j < pf_target_reg; j++)
4246 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), pfvfspoof);
4249 * The PF should be allowed to spoof so that it can support
4250 * emulation mode NICs. Do not set the bits assigned to the PF
4252 pfvfspoof &= (1 << pf_target_shift) - 1;
4253 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), pfvfspoof);
4256 * Remaining pools belong to the PF so they do not need to have
4257 * anti-spoofing enabled.
4259 for (j++; j < IXGBE_PFVFSPOOF_REG_COUNT; j++)
4260 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), 0);
4264 * ixgbe_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing
4265 * @hw: pointer to hardware structure
4266 * @enable: enable or disable switch for VLAN anti-spoofing
4267 * @vf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing
4270 void ixgbe_set_vlan_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf)
4272 int vf_target_reg = vf >> 3;
4273 int vf_target_shift = vf % 8 + IXGBE_SPOOF_VLANAS_SHIFT;
4276 if (hw->mac.type == ixgbe_mac_82598EB)
4279 pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
4281 pfvfspoof |= (1 << vf_target_shift);
4283 pfvfspoof &= ~(1 << vf_target_shift);
4284 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof);
4288 * ixgbe_get_device_caps_generic - Get additional device capabilities
4289 * @hw: pointer to hardware structure
4290 * @device_caps: the EEPROM word with the extra device capabilities
4292 * This function will read the EEPROM location for the device capabilities,
4293 * and return the word through device_caps.
4295 s32 ixgbe_get_device_caps_generic(struct ixgbe_hw *hw, u16 *device_caps)
4297 DEBUGFUNC("ixgbe_get_device_caps_generic");
4299 hw->eeprom.ops.read(hw, IXGBE_DEVICE_CAPS, device_caps);
4301 return IXGBE_SUCCESS;
4305 * ixgbe_enable_relaxed_ordering_gen2 - Enable relaxed ordering
4306 * @hw: pointer to hardware structure
4309 void ixgbe_enable_relaxed_ordering_gen2(struct ixgbe_hw *hw)
4314 DEBUGFUNC("ixgbe_enable_relaxed_ordering_gen2");
4316 /* Enable relaxed ordering */
4317 for (i = 0; i < hw->mac.max_tx_queues; i++) {
4318 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i));
4319 regval |= IXGBE_DCA_TXCTRL_DESC_WRO_EN;
4320 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval);
4323 for (i = 0; i < hw->mac.max_rx_queues; i++) {
4324 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
4325 regval |= IXGBE_DCA_RXCTRL_DATA_WRO_EN |
4326 IXGBE_DCA_RXCTRL_HEAD_WRO_EN;
4327 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
4333 * ixgbe_calculate_checksum - Calculate checksum for buffer
4334 * @buffer: pointer to EEPROM
4335 * @length: size of EEPROM to calculate a checksum for
4336 * Calculates the checksum for some buffer on a specified length. The
4337 * checksum calculated is returned.
4339 u8 ixgbe_calculate_checksum(u8 *buffer, u32 length)
4344 DEBUGFUNC("ixgbe_calculate_checksum");
4349 for (i = 0; i < length; i++)
4352 return (u8) (0 - sum);
4356 * ixgbe_host_interface_command - Issue command to manageability block
4357 * @hw: pointer to the HW structure
4358 * @buffer: contains the command to write and where the return status will
4360 * @length: length of buffer, must be multiple of 4 bytes
4361 * @timeout: time in ms to wait for command completion
4362 * @return_data: read and return data from the buffer (TRUE) or not (FALSE)
4363 * Needed because FW structures are big endian and decoding of
4364 * these fields can be 8 bit or 16 bit based on command. Decoding
4365 * is not easily understood without making a table of commands.
4366 * So we will leave this up to the caller to read back the data
4369 * Communicates with the manageability block. On success return IXGBE_SUCCESS
4370 * else return IXGBE_ERR_HOST_INTERFACE_COMMAND.
4372 s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer,
4373 u32 length, u32 timeout, bool return_data)
4375 u32 hicr, i, bi, fwsts;
4376 u32 hdr_size = sizeof(struct ixgbe_hic_hdr);
4380 DEBUGFUNC("ixgbe_host_interface_command");
4382 if (length == 0 || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) {
4383 DEBUGOUT1("Buffer length failure buffersize=%d.\n", length);
4384 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
4386 /* Set bit 9 of FWSTS clearing FW reset indication */
4387 fwsts = IXGBE_READ_REG(hw, IXGBE_FWSTS);
4388 IXGBE_WRITE_REG(hw, IXGBE_FWSTS, fwsts | IXGBE_FWSTS_FWRI);
4390 /* Check that the host interface is enabled. */
4391 hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
4392 if ((hicr & IXGBE_HICR_EN) == 0) {
4393 DEBUGOUT("IXGBE_HOST_EN bit disabled.\n");
4394 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
4397 /* Calculate length in DWORDs. We must be DWORD aligned */
4398 if ((length % (sizeof(u32))) != 0) {
4399 DEBUGOUT("Buffer length failure, not aligned to dword");
4400 return IXGBE_ERR_INVALID_ARGUMENT;
4403 dword_len = length >> 2;
4405 /* The device driver writes the relevant command block
4406 * into the ram area.
4408 for (i = 0; i < dword_len; i++)
4409 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_FLEX_MNG,
4410 i, IXGBE_CPU_TO_LE32(buffer[i]));
4412 /* Setting this bit tells the ARC that a new command is pending. */
4413 IXGBE_WRITE_REG(hw, IXGBE_HICR, hicr | IXGBE_HICR_C);
4415 for (i = 0; i < timeout; i++) {
4416 hicr = IXGBE_READ_REG(hw, IXGBE_HICR);
4417 if (!(hicr & IXGBE_HICR_C))
4422 /* Check command completion */
4423 if ((timeout != 0 && i == timeout) ||
4424 !(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV)) {
4425 ERROR_REPORT1(IXGBE_ERROR_CAUTION,
4426 "Command has failed with no status valid.\n");
4427 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
4433 /* Calculate length in DWORDs */
4434 dword_len = hdr_size >> 2;
4436 /* first pull in the header so we know the buffer length */
4437 for (bi = 0; bi < dword_len; bi++) {
4438 buffer[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi);
4439 IXGBE_LE32_TO_CPUS(&buffer[bi]);
4442 /* If there is any thing in data position pull it in */
4443 buf_len = ((struct ixgbe_hic_hdr *)buffer)->buf_len;
4447 if (length < buf_len + hdr_size) {
4448 DEBUGOUT("Buffer not large enough for reply message.\n");
4449 return IXGBE_ERR_HOST_INTERFACE_COMMAND;
4452 /* Calculate length in DWORDs, add 3 for odd lengths */
4453 dword_len = (buf_len + 3) >> 2;
4455 /* Pull in the rest of the buffer (bi is where we left off) */
4456 for (; bi <= dword_len; bi++) {
4457 buffer[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi);
4458 IXGBE_LE32_TO_CPUS(&buffer[bi]);
4465 * ixgbe_set_fw_drv_ver_generic - Sends driver version to firmware
4466 * @hw: pointer to the HW structure
4467 * @maj: driver version major number
4468 * @min: driver version minor number
4469 * @build: driver version build number
4470 * @sub: driver version sub build number
4472 * Sends driver version number to firmware through the manageability
4473 * block. On success return IXGBE_SUCCESS
4474 * else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring
4475 * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails.
4477 s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min,
4480 struct ixgbe_hic_drv_info fw_cmd;
4482 s32 ret_val = IXGBE_SUCCESS;
4484 DEBUGFUNC("ixgbe_set_fw_drv_ver_generic");
4486 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM)
4488 ret_val = IXGBE_ERR_SWFW_SYNC;
4492 fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO;
4493 fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN;
4494 fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
4495 fw_cmd.port_num = (u8)hw->bus.func;
4496 fw_cmd.ver_maj = maj;
4497 fw_cmd.ver_min = min;
4498 fw_cmd.ver_build = build;
4499 fw_cmd.ver_sub = sub;
4500 fw_cmd.hdr.checksum = 0;
4501 fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd,
4502 (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len));
4506 for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) {
4507 ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd,
4509 IXGBE_HI_COMMAND_TIMEOUT,
4511 if (ret_val != IXGBE_SUCCESS)
4514 if (fw_cmd.hdr.cmd_or_resp.ret_status ==
4515 FW_CEM_RESP_STATUS_SUCCESS)
4516 ret_val = IXGBE_SUCCESS;
4518 ret_val = IXGBE_ERR_HOST_INTERFACE_COMMAND;
4523 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM);
4529 * ixgbe_set_rxpba_generic - Initialize Rx packet buffer
4530 * @hw: pointer to hardware structure
4531 * @num_pb: number of packet buffers to allocate
4532 * @headroom: reserve n KB of headroom
4533 * @strategy: packet buffer allocation strategy
4535 void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw, int num_pb, u32 headroom,
4538 u32 pbsize = hw->mac.rx_pb_size;
4540 u32 rxpktsize, txpktsize, txpbthresh;
4542 /* Reserve headroom */
4548 /* Divide remaining packet buffer space amongst the number of packet
4549 * buffers requested using supplied strategy.
4552 case PBA_STRATEGY_WEIGHTED:
4553 /* ixgbe_dcb_pba_80_48 strategy weight first half of packet
4554 * buffer with 5/8 of the packet buffer space.
4556 rxpktsize = (pbsize * 5) / (num_pb * 4);
4557 pbsize -= rxpktsize * (num_pb / 2);
4558 rxpktsize <<= IXGBE_RXPBSIZE_SHIFT;
4559 for (; i < (num_pb / 2); i++)
4560 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
4561 /* Fall through to configure remaining packet buffers */
4562 case PBA_STRATEGY_EQUAL:
4563 rxpktsize = (pbsize / (num_pb - i)) << IXGBE_RXPBSIZE_SHIFT;
4564 for (; i < num_pb; i++)
4565 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
4571 /* Only support an equally distributed Tx packet buffer strategy. */
4572 txpktsize = IXGBE_TXPBSIZE_MAX / num_pb;
4573 txpbthresh = (txpktsize / 1024) - IXGBE_TXPKT_SIZE_MAX;
4574 for (i = 0; i < num_pb; i++) {
4575 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize);
4576 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh);
4579 /* Clear unused TCs, if any, to zero buffer size*/
4580 for (; i < IXGBE_MAX_PB; i++) {
4581 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
4582 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0);
4583 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0);
4588 * ixgbe_clear_tx_pending - Clear pending TX work from the PCIe fifo
4589 * @hw: pointer to the hardware structure
4591 * The 82599 and x540 MACs can experience issues if TX work is still pending
4592 * when a reset occurs. This function prevents this by flushing the PCIe
4593 * buffers on the system.
4595 void ixgbe_clear_tx_pending(struct ixgbe_hw *hw)
4597 u32 gcr_ext, hlreg0, i, poll;
4601 * If double reset is not requested then all transactions should
4602 * already be clear and as such there is no work to do
4604 if (!(hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED))
4608 * Set loopback enable to prevent any transmits from being sent
4609 * should the link come up. This assumes that the RXCTRL.RXEN bit
4610 * has already been cleared.
4612 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
4613 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0 | IXGBE_HLREG0_LPBK);
4615 /* Wait for a last completion before clearing buffers */
4616 IXGBE_WRITE_FLUSH(hw);
4620 * Before proceeding, make sure that the PCIe block does not have
4621 * transactions pending.
4623 poll = ixgbe_pcie_timeout_poll(hw);
4624 for (i = 0; i < poll; i++) {
4626 value = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_STATUS);
4627 if (IXGBE_REMOVED(hw->hw_addr))
4629 if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING))
4634 /* initiate cleaning flow for buffers in the PCIe transaction layer */
4635 gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
4636 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT,
4637 gcr_ext | IXGBE_GCR_EXT_BUFFERS_CLEAR);
4639 /* Flush all writes and allow 20usec for all transactions to clear */
4640 IXGBE_WRITE_FLUSH(hw);
4643 /* restore previous register values */
4644 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
4645 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
4650 * ixgbe_dcb_get_rtrup2tc_generic - read rtrup2tc reg
4651 * @hw: pointer to hardware structure
4652 * @map: pointer to u8 arr for returning map
4654 * Read the rtrup2tc HW register and resolve its content into map
4656 void ixgbe_dcb_get_rtrup2tc_generic(struct ixgbe_hw *hw, u8 *map)
4660 reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
4661 for (i = 0; i < IXGBE_DCB_MAX_USER_PRIORITY; i++)
4662 map[i] = IXGBE_RTRUP2TC_UP_MASK &
4663 (reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT));
4667 void ixgbe_disable_rx_generic(struct ixgbe_hw *hw)
4672 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4673 if (rxctrl & IXGBE_RXCTRL_RXEN) {
4674 if (hw->mac.type != ixgbe_mac_82598EB) {
4675 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
4676 if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) {
4677 pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN;
4678 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
4679 hw->mac.set_lben = TRUE;
4681 hw->mac.set_lben = FALSE;
4684 rxctrl &= ~IXGBE_RXCTRL_RXEN;
4685 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl);
4689 void ixgbe_enable_rx_generic(struct ixgbe_hw *hw)
4694 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4695 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, (rxctrl | IXGBE_RXCTRL_RXEN));
4697 if (hw->mac.type != ixgbe_mac_82598EB) {
4698 if (hw->mac.set_lben) {
4699 pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC);
4700 pfdtxgswc |= IXGBE_PFDTXGSWC_VT_LBEN;
4701 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc);
4702 hw->mac.set_lben = FALSE;
4708 * ixgbe_mng_present - returns TRUE when management capability is present
4709 * @hw: pointer to hardware structure
4711 bool ixgbe_mng_present(struct ixgbe_hw *hw)
4715 if (hw->mac.type < ixgbe_mac_82599EB)
4718 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM);
4719 fwsm &= IXGBE_FWSM_MODE_MASK;
4720 return fwsm == IXGBE_FWSM_FW_MODE_PT;
4724 * ixgbe_mng_enabled - Is the manageability engine enabled?
4725 * @hw: pointer to hardware structure
4727 * Returns TRUE if the manageability engine is enabled.
4729 bool ixgbe_mng_enabled(struct ixgbe_hw *hw)
4731 u32 fwsm, manc, factps;
4733 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM);
4734 if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT)
4737 manc = IXGBE_READ_REG(hw, IXGBE_MANC);
4738 if (!(manc & IXGBE_MANC_RCV_TCO_EN))
4741 if (hw->mac.type <= ixgbe_mac_X540) {
4742 factps = IXGBE_READ_REG(hw, IXGBE_FACTPS);
4743 if (factps & IXGBE_FACTPS_MNGCG)
4751 * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
4752 * @hw: pointer to hardware structure
4753 * @speed: new link speed
4754 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
4756 * Set the link speed in the MAC and/or PHY register and restarts link.
4758 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
4759 ixgbe_link_speed speed,
4760 bool autoneg_wait_to_complete)
4762 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
4763 ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN;
4764 s32 status = IXGBE_SUCCESS;
4767 bool autoneg, link_up = FALSE;
4769 DEBUGFUNC("ixgbe_setup_mac_link_multispeed_fiber");
4771 /* Mask off requested but non-supported speeds */
4772 status = ixgbe_get_link_capabilities(hw, &link_speed, &autoneg);
4773 if (status != IXGBE_SUCCESS)
4776 speed &= link_speed;
4778 /* Try each speed one by one, highest priority first. We do this in
4779 * software because 10Gb fiber doesn't support speed autonegotiation.
4781 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
4783 highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
4785 /* If we already have link at this speed, just jump out */
4786 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
4787 if (status != IXGBE_SUCCESS)
4790 if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up)
4793 /* Set the module link speed */
4794 switch (hw->phy.media_type) {
4795 case ixgbe_media_type_fiber_fixed:
4796 case ixgbe_media_type_fiber:
4797 ixgbe_set_rate_select_speed(hw,
4798 IXGBE_LINK_SPEED_10GB_FULL);
4800 case ixgbe_media_type_fiber_qsfp:
4801 /* QSFP module automatically detects MAC link speed */
4804 DEBUGOUT("Unexpected media type.\n");
4808 /* Allow module to change analog characteristics (1G->10G) */
4811 status = ixgbe_setup_mac_link(hw,
4812 IXGBE_LINK_SPEED_10GB_FULL,
4813 autoneg_wait_to_complete);
4814 if (status != IXGBE_SUCCESS)
4817 /* Flap the Tx laser if it has not already been done */
4818 ixgbe_flap_tx_laser(hw);
4820 /* Wait for the controller to acquire link. Per IEEE 802.3ap,
4821 * Section 73.10.2, we may have to wait up to 500ms if KR is
4822 * attempted. 82599 uses the same timing for 10g SFI.
4824 for (i = 0; i < 5; i++) {
4825 /* Wait for the link partner to also set speed */
4828 /* If we have link, just jump out */
4829 status = ixgbe_check_link(hw, &link_speed,
4831 if (status != IXGBE_SUCCESS)
4839 if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
4841 if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
4842 highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
4844 /* If we already have link at this speed, just jump out */
4845 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
4846 if (status != IXGBE_SUCCESS)
4849 if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up)
4852 /* Set the module link speed */
4853 switch (hw->phy.media_type) {
4854 case ixgbe_media_type_fiber_fixed:
4855 case ixgbe_media_type_fiber:
4856 ixgbe_set_rate_select_speed(hw,
4857 IXGBE_LINK_SPEED_1GB_FULL);
4859 case ixgbe_media_type_fiber_qsfp:
4860 /* QSFP module automatically detects link speed */
4863 DEBUGOUT("Unexpected media type.\n");
4867 /* Allow module to change analog characteristics (10G->1G) */
4870 status = ixgbe_setup_mac_link(hw,
4871 IXGBE_LINK_SPEED_1GB_FULL,
4872 autoneg_wait_to_complete);
4873 if (status != IXGBE_SUCCESS)
4876 /* Flap the Tx laser if it has not already been done */
4877 ixgbe_flap_tx_laser(hw);
4879 /* Wait for the link partner to also set speed */
4882 /* If we have link, just jump out */
4883 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
4884 if (status != IXGBE_SUCCESS)
4891 /* We didn't get link. Configure back to the highest speed we tried,
4892 * (if there was more than one). We call ourselves back with just the
4893 * single highest speed that the user requested.
4896 status = ixgbe_setup_mac_link_multispeed_fiber(hw,
4898 autoneg_wait_to_complete);
4901 /* Set autoneg_advertised value based on input link speed */
4902 hw->phy.autoneg_advertised = 0;
4904 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
4905 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
4907 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
4908 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
4914 * ixgbe_set_soft_rate_select_speed - Set module link speed
4915 * @hw: pointer to hardware structure
4916 * @speed: link speed to set
4918 * Set module link speed via the soft rate select.
4920 void ixgbe_set_soft_rate_select_speed(struct ixgbe_hw *hw,
4921 ixgbe_link_speed speed)
4927 case IXGBE_LINK_SPEED_10GB_FULL:
4928 /* one bit mask same as setting on */
4929 rs = IXGBE_SFF_SOFT_RS_SELECT_10G;
4931 case IXGBE_LINK_SPEED_1GB_FULL:
4932 rs = IXGBE_SFF_SOFT_RS_SELECT_1G;
4935 DEBUGOUT("Invalid fixed module speed\n");
4940 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
4941 IXGBE_I2C_EEPROM_DEV_ADDR2,
4944 DEBUGOUT("Failed to read Rx Rate Select RS0\n");
4948 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs;
4950 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
4951 IXGBE_I2C_EEPROM_DEV_ADDR2,
4954 DEBUGOUT("Failed to write Rx Rate Select RS0\n");
4959 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
4960 IXGBE_I2C_EEPROM_DEV_ADDR2,
4963 DEBUGOUT("Failed to read Rx Rate Select RS1\n");
4967 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs;
4969 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
4970 IXGBE_I2C_EEPROM_DEV_ADDR2,
4973 DEBUGOUT("Failed to write Rx Rate Select RS1\n");