xref: /freebsd/sys/dev/ixl/ixl_pf_main.c (revision 61e21613)
1 /******************************************************************************
2 
3   Copyright (c) 2013-2018, Intel Corporation
4   All rights reserved.
5 
6   Redistribution and use in source and binary forms, with or without
7   modification, are permitted provided that the following conditions are met:
8 
9    1. Redistributions of source code must retain the above copyright notice,
10       this list of conditions and the following disclaimer.
11 
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.
15 
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.
19 
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
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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.
31 
32 ******************************************************************************/
33 
34 
35 #include "ixl_pf.h"
36 
37 #ifdef PCI_IOV
38 #include "ixl_pf_iov.h"
39 #endif
40 
41 #ifdef IXL_IW
42 #include "ixl_iw.h"
43 #include "ixl_iw_int.h"
44 #endif
45 
46 static u8	ixl_convert_sysctl_aq_link_speed(u8, bool);
47 static void	ixl_sbuf_print_bytes(struct sbuf *, u8 *, int, int, bool);
48 static const char * ixl_link_speed_string(enum i40e_aq_link_speed);
49 static u_int	ixl_add_maddr(void *, struct sockaddr_dl *, u_int);
50 static u_int	ixl_match_maddr(void *, struct sockaddr_dl *, u_int);
51 static char *	ixl_switch_element_string(struct sbuf *, u8, u16);
52 static enum ixl_fw_mode ixl_get_fw_mode(struct ixl_pf *);
53 
54 /* Sysctls */
55 static int	ixl_sysctl_set_advertise(SYSCTL_HANDLER_ARGS);
56 static int	ixl_sysctl_supported_speeds(SYSCTL_HANDLER_ARGS);
57 static int	ixl_sysctl_current_speed(SYSCTL_HANDLER_ARGS);
58 static int	ixl_sysctl_show_fw(SYSCTL_HANDLER_ARGS);
59 static int	ixl_sysctl_unallocated_queues(SYSCTL_HANDLER_ARGS);
60 static int	ixl_sysctl_pf_tx_itr(SYSCTL_HANDLER_ARGS);
61 static int	ixl_sysctl_pf_rx_itr(SYSCTL_HANDLER_ARGS);
62 
63 static int	ixl_sysctl_eee_enable(SYSCTL_HANDLER_ARGS);
64 static int	ixl_sysctl_set_link_active(SYSCTL_HANDLER_ARGS);
65 
66 /* Debug Sysctls */
67 static int 	ixl_sysctl_link_status(SYSCTL_HANDLER_ARGS);
68 static int	ixl_sysctl_phy_abilities(SYSCTL_HANDLER_ARGS);
69 static int	ixl_sysctl_phy_statistics(SYSCTL_HANDLER_ARGS);
70 static int	ixl_sysctl_sw_filter_list(SYSCTL_HANDLER_ARGS);
71 static int	ixl_sysctl_hw_res_alloc(SYSCTL_HANDLER_ARGS);
72 static int	ixl_sysctl_switch_config(SYSCTL_HANDLER_ARGS);
73 static int	ixl_sysctl_switch_vlans(SYSCTL_HANDLER_ARGS);
74 static int	ixl_sysctl_hkey(SYSCTL_HANDLER_ARGS);
75 static int	ixl_sysctl_hena(SYSCTL_HANDLER_ARGS);
76 static int	ixl_sysctl_hlut(SYSCTL_HANDLER_ARGS);
77 static int	ixl_sysctl_fw_link_management(SYSCTL_HANDLER_ARGS);
78 static int	ixl_sysctl_read_i2c_byte(SYSCTL_HANDLER_ARGS);
79 static int	ixl_sysctl_write_i2c_byte(SYSCTL_HANDLER_ARGS);
80 static int	ixl_sysctl_fec_fc_ability(SYSCTL_HANDLER_ARGS);
81 static int	ixl_sysctl_fec_rs_ability(SYSCTL_HANDLER_ARGS);
82 static int	ixl_sysctl_fec_fc_request(SYSCTL_HANDLER_ARGS);
83 static int	ixl_sysctl_fec_rs_request(SYSCTL_HANDLER_ARGS);
84 static int	ixl_sysctl_fec_auto_enable(SYSCTL_HANDLER_ARGS);
85 static int	ixl_sysctl_dump_debug_data(SYSCTL_HANDLER_ARGS);
86 static int	ixl_sysctl_fw_lldp(SYSCTL_HANDLER_ARGS);
87 static int	ixl_sysctl_read_i2c_diag_data(SYSCTL_HANDLER_ARGS);
88 
89 /* Debug Sysctls */
90 static int	ixl_sysctl_do_pf_reset(SYSCTL_HANDLER_ARGS);
91 static int	ixl_sysctl_do_core_reset(SYSCTL_HANDLER_ARGS);
92 static int	ixl_sysctl_do_global_reset(SYSCTL_HANDLER_ARGS);
93 static int	ixl_sysctl_queue_interrupt_table(SYSCTL_HANDLER_ARGS);
94 #ifdef IXL_DEBUG
95 static int	ixl_sysctl_qtx_tail_handler(SYSCTL_HANDLER_ARGS);
96 static int	ixl_sysctl_qrx_tail_handler(SYSCTL_HANDLER_ARGS);
97 #endif
98 
99 #ifdef IXL_IW
100 extern int ixl_enable_iwarp;
101 extern int ixl_limit_iwarp_msix;
102 #endif
103 
104 static const char * const ixl_fc_string[6] = {
105 	"None",
106 	"Rx",
107 	"Tx",
108 	"Full",
109 	"Priority",
110 	"Default"
111 };
112 
113 static char *ixl_fec_string[3] = {
114        "CL108 RS-FEC",
115        "CL74 FC-FEC/BASE-R",
116        "None"
117 };
118 
119 /* Functions for setting and checking driver state. Note the functions take
120  * bit positions, not bitmasks. The atomic_set_32 and atomic_clear_32
121  * operations require bitmasks. This can easily lead to programming error, so
122  * we provide wrapper functions to avoid this.
123  */
124 
125 /**
126  * ixl_set_state - Set the specified state
127  * @s: the state bitmap
128  * @bit: the state to set
129  *
130  * Atomically update the state bitmap with the specified bit set.
131  */
132 inline void
133 ixl_set_state(volatile u32 *s, enum ixl_state bit)
134 {
135 	/* atomic_set_32 expects a bitmask */
136 	atomic_set_32(s, BIT(bit));
137 }
138 
139 /**
140  * ixl_clear_state - Clear the specified state
141  * @s: the state bitmap
142  * @bit: the state to clear
143  *
144  * Atomically update the state bitmap with the specified bit cleared.
145  */
146 inline void
147 ixl_clear_state(volatile u32 *s, enum ixl_state bit)
148 {
149 	/* atomic_clear_32 expects a bitmask */
150 	atomic_clear_32(s, BIT(bit));
151 }
152 
153 /**
154  * ixl_test_state - Test the specified state
155  * @s: the state bitmap
156  * @bit: the bit to test
157  *
158  * Return true if the state is set, false otherwise. Use this only if the flow
159  * does not need to update the state. If you must update the state as well,
160  * prefer ixl_testandset_state.
161  */
162 inline bool
163 ixl_test_state(volatile u32 *s, enum ixl_state bit)
164 {
165 	return !!(*s & BIT(bit));
166 }
167 
168 /**
169  * ixl_testandset_state - Test and set the specified state
170  * @s: the state bitmap
171  * @bit: the bit to test
172  *
173  * Atomically update the state bitmap, setting the specified bit. Returns the
174  * previous value of the bit.
175  */
176 inline u32
177 ixl_testandset_state(volatile u32 *s, enum ixl_state bit)
178 {
179 	/* atomic_testandset_32 expects a bit position, as opposed to bitmask
180 	expected by other atomic functions */
181 	return atomic_testandset_32(s, bit);
182 }
183 
184 MALLOC_DEFINE(M_IXL, "ixl", "ixl driver allocations");
185 
186 /*
187 ** Put the FW, API, NVM, EEtrackID, and OEM version information into a string
188 */
189 void
190 ixl_nvm_version_str(struct i40e_hw *hw, struct sbuf *buf)
191 {
192 	u8 oem_ver = (u8)(hw->nvm.oem_ver >> 24);
193 	u16 oem_build = (u16)((hw->nvm.oem_ver >> 16) & 0xFFFF);
194 	u8 oem_patch = (u8)(hw->nvm.oem_ver & 0xFF);
195 
196 	sbuf_printf(buf,
197 	    "fw %d.%d.%05d api %d.%d nvm %x.%02x etid %08x oem %d.%d.%d",
198 	    hw->aq.fw_maj_ver, hw->aq.fw_min_ver, hw->aq.fw_build,
199 	    hw->aq.api_maj_ver, hw->aq.api_min_ver,
200 	    (hw->nvm.version & IXL_NVM_VERSION_HI_MASK) >>
201 	    IXL_NVM_VERSION_HI_SHIFT,
202 	    (hw->nvm.version & IXL_NVM_VERSION_LO_MASK) >>
203 	    IXL_NVM_VERSION_LO_SHIFT,
204 	    hw->nvm.eetrack,
205 	    oem_ver, oem_build, oem_patch);
206 }
207 
208 void
209 ixl_print_nvm_version(struct ixl_pf *pf)
210 {
211 	struct i40e_hw *hw = &pf->hw;
212 	device_t dev = pf->dev;
213 	struct sbuf *sbuf;
214 
215 	sbuf = sbuf_new_auto();
216 	ixl_nvm_version_str(hw, sbuf);
217 	sbuf_finish(sbuf);
218 	device_printf(dev, "%s\n", sbuf_data(sbuf));
219 	sbuf_delete(sbuf);
220 }
221 
222 /**
223  * ixl_get_fw_mode - Check the state of FW
224  * @hw: device hardware structure
225  *
226  * Identify state of FW. It might be in a recovery mode
227  * which limits functionality and requires special handling
228  * from the driver.
229  *
230  * @returns FW mode (normal, recovery, unexpected EMP reset)
231  */
232 static enum ixl_fw_mode
233 ixl_get_fw_mode(struct ixl_pf *pf)
234 {
235 	struct i40e_hw *hw = &pf->hw;
236 	enum ixl_fw_mode fw_mode = IXL_FW_MODE_NORMAL;
237 	u32 fwsts;
238 
239 #ifdef IXL_DEBUG
240 	if (pf->recovery_mode)
241 		return IXL_FW_MODE_RECOVERY;
242 #endif
243 	fwsts = rd32(hw, I40E_GL_FWSTS) & I40E_GL_FWSTS_FWS1B_MASK;
244 
245 	/* Is set and has one of expected values */
246 	if ((fwsts >= I40E_XL710_GL_FWSTS_FWS1B_REC_MOD_CORER_MASK &&
247 	    fwsts <= I40E_XL710_GL_FWSTS_FWS1B_REC_MOD_NVM_MASK) ||
248 	    fwsts == I40E_X722_GL_FWSTS_FWS1B_REC_MOD_GLOBR_MASK ||
249 	    fwsts == I40E_X722_GL_FWSTS_FWS1B_REC_MOD_CORER_MASK)
250 		fw_mode = IXL_FW_MODE_RECOVERY;
251 	else {
252 		if (fwsts > I40E_GL_FWSTS_FWS1B_EMPR_0 &&
253 		    fwsts <= I40E_GL_FWSTS_FWS1B_EMPR_10)
254 			fw_mode = IXL_FW_MODE_UEMPR;
255 	}
256 	return (fw_mode);
257 }
258 
259 /**
260  * ixl_pf_reset - Reset the PF
261  * @pf: PF structure
262  *
263  * Ensure that FW is in the right state and do the reset
264  * if needed.
265  *
266  * @returns zero on success, or an error code on failure.
267  */
268 int
269 ixl_pf_reset(struct ixl_pf *pf)
270 {
271 	struct i40e_hw *hw = &pf->hw;
272 	enum i40e_status_code status;
273 	enum ixl_fw_mode fw_mode;
274 
275 	fw_mode = ixl_get_fw_mode(pf);
276 	ixl_dbg_info(pf, "%s: before PF reset FW mode: 0x%08x\n", __func__, fw_mode);
277 	if (fw_mode == IXL_FW_MODE_RECOVERY) {
278 		ixl_set_state(&pf->state, IXL_STATE_RECOVERY_MODE);
279 		/* Don't try to reset device if it's in recovery mode */
280 		return (0);
281 	}
282 
283 	status = i40e_pf_reset(hw);
284 	if (status == I40E_SUCCESS)
285 		return (0);
286 
287 	/* Check FW mode again in case it has changed while
288 	 * waiting for reset to complete */
289 	fw_mode = ixl_get_fw_mode(pf);
290 	ixl_dbg_info(pf, "%s: after PF reset FW mode: 0x%08x\n", __func__, fw_mode);
291 	if (fw_mode == IXL_FW_MODE_RECOVERY) {
292 		ixl_set_state(&pf->state, IXL_STATE_RECOVERY_MODE);
293 		return (0);
294 	}
295 
296 	if (fw_mode == IXL_FW_MODE_UEMPR)
297 		device_printf(pf->dev,
298 		    "Entering recovery mode due to repeated FW resets. This may take several minutes. Refer to the Intel(R) Ethernet Adapters and Devices User Guide.\n");
299 	else
300 		device_printf(pf->dev, "PF reset failure %s\n",
301 		    i40e_stat_str(hw, status));
302 	return (EIO);
303 }
304 
305 /**
306  * ixl_setup_hmc - Setup LAN Host Memory Cache
307  * @pf: PF structure
308  *
309  * Init and configure LAN Host Memory Cache
310  *
311  * @returns 0 on success, EIO on error
312  */
313 int
314 ixl_setup_hmc(struct ixl_pf *pf)
315 {
316 	struct i40e_hw *hw = &pf->hw;
317 	enum i40e_status_code status;
318 
319 	status = i40e_init_lan_hmc(hw, hw->func_caps.num_tx_qp,
320 	    hw->func_caps.num_rx_qp, 0, 0);
321 	if (status) {
322 		device_printf(pf->dev, "init_lan_hmc failed: %s\n",
323 		    i40e_stat_str(hw, status));
324 		return (EIO);
325 	}
326 
327 	status = i40e_configure_lan_hmc(hw, I40E_HMC_MODEL_DIRECT_ONLY);
328 	if (status) {
329 		device_printf(pf->dev, "configure_lan_hmc failed: %s\n",
330 		    i40e_stat_str(hw, status));
331 		return (EIO);
332 	}
333 
334 	return (0);
335 }
336 
337 /**
338  * ixl_shutdown_hmc - Shutdown LAN Host Memory Cache
339  * @pf: PF structure
340  *
341  * Shutdown Host Memory Cache if configured.
342  *
343  */
344 void
345 ixl_shutdown_hmc(struct ixl_pf *pf)
346 {
347 	struct i40e_hw *hw = &pf->hw;
348 	enum i40e_status_code status;
349 
350 	/* HMC not configured, no need to shutdown */
351 	if (hw->hmc.hmc_obj == NULL)
352 		return;
353 
354 	status = i40e_shutdown_lan_hmc(hw);
355 	if (status)
356 		device_printf(pf->dev,
357 		    "Shutdown LAN HMC failed with code %s\n",
358 		    i40e_stat_str(hw, status));
359 }
360 /*
361  * Write PF ITR values to queue ITR registers.
362  */
363 void
364 ixl_configure_itr(struct ixl_pf *pf)
365 {
366 	ixl_configure_tx_itr(pf);
367 	ixl_configure_rx_itr(pf);
368 }
369 
370 /*********************************************************************
371  *
372  *  Get the hardware capabilities
373  *
374  **********************************************************************/
375 
376 int
377 ixl_get_hw_capabilities(struct ixl_pf *pf)
378 {
379 	struct i40e_aqc_list_capabilities_element_resp *buf;
380 	struct i40e_hw	*hw = &pf->hw;
381 	device_t 	dev = pf->dev;
382 	enum i40e_status_code status;
383 	int len, i2c_intfc_num;
384 	bool again = TRUE;
385 	u16 needed;
386 
387 	if (IXL_PF_IN_RECOVERY_MODE(pf)) {
388 		hw->func_caps.iwarp = 0;
389 		return (0);
390 	}
391 
392 	len = 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp);
393 retry:
394 	if (!(buf = (struct i40e_aqc_list_capabilities_element_resp *)
395 	    malloc(len, M_IXL, M_NOWAIT | M_ZERO))) {
396 		device_printf(dev, "Unable to allocate cap memory\n");
397                 return (ENOMEM);
398 	}
399 
400 	/* This populates the hw struct */
401         status = i40e_aq_discover_capabilities(hw, buf, len,
402 	    &needed, i40e_aqc_opc_list_func_capabilities, NULL);
403 	free(buf, M_IXL);
404 	if ((pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOMEM) &&
405 	    (again == TRUE)) {
406 		/* retry once with a larger buffer */
407 		again = FALSE;
408 		len = needed;
409 		goto retry;
410 	} else if (status != I40E_SUCCESS) {
411 		device_printf(dev, "capability discovery failed; status %s, error %s\n",
412 		    i40e_stat_str(hw, status), i40e_aq_str(hw, hw->aq.asq_last_status));
413 		return (ENODEV);
414 	}
415 
416 	/*
417 	 * Some devices have both MDIO and I2C; since this isn't reported
418 	 * by the FW, check registers to see if an I2C interface exists.
419 	 */
420 	i2c_intfc_num = ixl_find_i2c_interface(pf);
421 	if (i2c_intfc_num != -1)
422 		pf->has_i2c = true;
423 
424 	/* Determine functions to use for driver I2C accesses */
425 	switch (pf->i2c_access_method) {
426 	case IXL_I2C_ACCESS_METHOD_BEST_AVAILABLE: {
427 		if (hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE) {
428 			pf->read_i2c_byte = ixl_read_i2c_byte_aq;
429 			pf->write_i2c_byte = ixl_write_i2c_byte_aq;
430 		} else {
431 			pf->read_i2c_byte = ixl_read_i2c_byte_reg;
432 			pf->write_i2c_byte = ixl_write_i2c_byte_reg;
433 		}
434 		break;
435 	}
436 	case IXL_I2C_ACCESS_METHOD_AQ:
437 		pf->read_i2c_byte = ixl_read_i2c_byte_aq;
438 		pf->write_i2c_byte = ixl_write_i2c_byte_aq;
439 		break;
440 	case IXL_I2C_ACCESS_METHOD_REGISTER_I2CCMD:
441 		pf->read_i2c_byte = ixl_read_i2c_byte_reg;
442 		pf->write_i2c_byte = ixl_write_i2c_byte_reg;
443 		break;
444 	case IXL_I2C_ACCESS_METHOD_BIT_BANG_I2CPARAMS:
445 		pf->read_i2c_byte = ixl_read_i2c_byte_bb;
446 		pf->write_i2c_byte = ixl_write_i2c_byte_bb;
447 		break;
448 	default:
449 		/* Should not happen */
450 		device_printf(dev, "Error setting I2C access functions\n");
451 		break;
452 	}
453 
454 	/* Keep link active by default */
455 	ixl_set_state(&pf->state, IXL_STATE_LINK_ACTIVE_ON_DOWN);
456 
457 	/* Print a subset of the capability information. */
458 	device_printf(dev,
459 	    "PF-ID[%d]: VFs %d, MSI-X %d, VF MSI-X %d, QPs %d, %s\n",
460 	    hw->pf_id, hw->func_caps.num_vfs, hw->func_caps.num_msix_vectors,
461 	    hw->func_caps.num_msix_vectors_vf, hw->func_caps.num_tx_qp,
462 	    (hw->func_caps.mdio_port_mode == 2) ? "I2C" :
463 	    (hw->func_caps.mdio_port_mode == 1 && pf->has_i2c) ? "MDIO & I2C" :
464 	    (hw->func_caps.mdio_port_mode == 1) ? "MDIO dedicated" :
465 	    "MDIO shared");
466 
467 	return (0);
468 }
469 
470 /* For the set_advertise sysctl */
471 void
472 ixl_set_initial_advertised_speeds(struct ixl_pf *pf)
473 {
474 	device_t dev = pf->dev;
475 	int err;
476 
477 	/* Make sure to initialize the device to the complete list of
478 	 * supported speeds on driver load, to ensure unloading and
479 	 * reloading the driver will restore this value.
480 	 */
481 	err = ixl_set_advertised_speeds(pf, pf->supported_speeds, true);
482 	if (err) {
483 		/* Non-fatal error */
484 		device_printf(dev, "%s: ixl_set_advertised_speeds() error %d\n",
485 			      __func__, err);
486 		return;
487 	}
488 
489 	pf->advertised_speed =
490 	    ixl_convert_sysctl_aq_link_speed(pf->supported_speeds, false);
491 }
492 
493 int
494 ixl_teardown_hw_structs(struct ixl_pf *pf)
495 {
496 	enum i40e_status_code status = 0;
497 	struct i40e_hw *hw = &pf->hw;
498 	device_t dev = pf->dev;
499 
500 	/* Shutdown LAN HMC */
501 	if (hw->hmc.hmc_obj) {
502 		status = i40e_shutdown_lan_hmc(hw);
503 		if (status) {
504 			device_printf(dev,
505 			    "init: LAN HMC shutdown failure; status %s\n",
506 			    i40e_stat_str(hw, status));
507 			goto err_out;
508 		}
509 	}
510 
511 	/* Shutdown admin queue */
512 	ixl_disable_intr0(hw);
513 	status = i40e_shutdown_adminq(hw);
514 	if (status)
515 		device_printf(dev,
516 		    "init: Admin Queue shutdown failure; status %s\n",
517 		    i40e_stat_str(hw, status));
518 
519 	ixl_pf_qmgr_release(&pf->qmgr, &pf->qtag);
520 err_out:
521 	return (status);
522 }
523 
524 /*
525 ** Creates new filter with given MAC address and VLAN ID
526 */
527 static struct ixl_mac_filter *
528 ixl_new_filter(struct ixl_ftl_head *headp, const u8 *macaddr, s16 vlan)
529 {
530 	struct ixl_mac_filter  *f;
531 
532 	/* create a new empty filter */
533 	f = malloc(sizeof(struct ixl_mac_filter),
534 	    M_IXL, M_NOWAIT | M_ZERO);
535 	if (f) {
536 		LIST_INSERT_HEAD(headp, f, ftle);
537 		bcopy(macaddr, f->macaddr, ETHER_ADDR_LEN);
538 		f->vlan = vlan;
539 	}
540 
541 	return (f);
542 }
543 
544 /**
545  * ixl_free_filters - Free all filters in given list
546  * headp - pointer to list head
547  *
548  * Frees memory used by each entry in the list.
549  * Does not remove filters from HW.
550  */
551 void
552 ixl_free_filters(struct ixl_ftl_head *headp)
553 {
554 	struct ixl_mac_filter *f, *nf;
555 
556 	f = LIST_FIRST(headp);
557 	while (f != NULL) {
558 		nf = LIST_NEXT(f, ftle);
559 		free(f, M_IXL);
560 		f = nf;
561 	}
562 
563 	LIST_INIT(headp);
564 }
565 
566 static u_int
567 ixl_add_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt)
568 {
569 	struct ixl_add_maddr_arg *ama = arg;
570 	struct ixl_vsi *vsi = ama->vsi;
571 	const u8 *macaddr = (u8*)LLADDR(sdl);
572 	struct ixl_mac_filter *f;
573 
574 	/* Does one already exist */
575 	f = ixl_find_filter(&vsi->ftl, macaddr, IXL_VLAN_ANY);
576 	if (f != NULL)
577 		return (0);
578 
579 	f = ixl_new_filter(&ama->to_add, macaddr, IXL_VLAN_ANY);
580 	if (f == NULL) {
581 		device_printf(vsi->dev, "WARNING: no filter available!!\n");
582 		return (0);
583 	}
584 	f->flags |= IXL_FILTER_MC;
585 
586 	return (1);
587 }
588 
589 /*********************************************************************
590  * 	Filter Routines
591  *
592  *	Routines for multicast and vlan filter management.
593  *
594  *********************************************************************/
595 
596 /**
597  * ixl_add_multi - Add multicast filters to the hardware
598  * @vsi: The VSI structure
599  *
600  * In case number of multicast filters in the IFP exceeds 127 entries,
601  * multicast promiscuous mode will be enabled and the filters will be removed
602  * from the hardware
603  */
604 void
605 ixl_add_multi(struct ixl_vsi *vsi)
606 {
607 	if_t			ifp = vsi->ifp;
608 	struct i40e_hw		*hw = vsi->hw;
609 	int			mcnt = 0;
610 	struct ixl_add_maddr_arg cb_arg;
611 	enum i40e_status_code	status;
612 
613 	IOCTL_DEBUGOUT("ixl_add_multi: begin");
614 
615 	mcnt = if_llmaddr_count(ifp);
616 	if (__predict_false(mcnt >= MAX_MULTICAST_ADDR)) {
617 		status = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
618 		    TRUE, NULL);
619 		if (status != I40E_SUCCESS)
620 			if_printf(ifp, "Failed to enable multicast promiscuous "
621 			    "mode, status: %s\n", i40e_stat_str(hw, status));
622 		else
623 			if_printf(ifp, "Enabled multicast promiscuous mode\n");
624 		/* Delete all existing MC filters */
625 		ixl_del_multi(vsi, true);
626 		return;
627 	}
628 
629 	cb_arg.vsi = vsi;
630 	LIST_INIT(&cb_arg.to_add);
631 
632 	mcnt = if_foreach_llmaddr(ifp, ixl_add_maddr, &cb_arg);
633 	if (mcnt > 0)
634 		ixl_add_hw_filters(vsi, &cb_arg.to_add, mcnt);
635 
636 	IOCTL_DEBUGOUT("ixl_add_multi: end");
637 }
638 
639 static u_int
640 ixl_match_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt)
641 {
642 	struct ixl_mac_filter *f = arg;
643 
644 	if (ixl_ether_is_equal(f->macaddr, (u8 *)LLADDR(sdl)))
645 		return (1);
646 	else
647 		return (0);
648 }
649 
650 /**
651  * ixl_dis_multi_promisc - Disable multicast promiscuous mode
652  * @vsi: The VSI structure
653  * @vsi_mcnt: Number of multicast filters in the VSI
654  *
655  * Disable multicast promiscuous mode based on number of entries in the IFP
656  * and the VSI, then re-add multicast filters.
657  *
658  */
659 static void
660 ixl_dis_multi_promisc(struct ixl_vsi *vsi, int vsi_mcnt)
661 {
662 	struct ifnet		*ifp = vsi->ifp;
663 	struct i40e_hw		*hw = vsi->hw;
664 	int			ifp_mcnt = 0;
665 	enum i40e_status_code	status;
666 
667 	ifp_mcnt = if_llmaddr_count(ifp);
668 	/*
669 	 * Equal lists or empty ifp list mean the list has not been changed
670 	 * and in such case avoid disabling multicast promiscuous mode as it
671 	 * was not previously enabled. Case where multicast promiscuous mode has
672 	 * been enabled is when vsi_mcnt == 0 && ifp_mcnt > 0.
673 	 */
674 	if (ifp_mcnt == vsi_mcnt || ifp_mcnt == 0 ||
675 	    ifp_mcnt >= MAX_MULTICAST_ADDR)
676 		return;
677 
678 	status = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
679 	    FALSE, NULL);
680 	if (status != I40E_SUCCESS) {
681 		if_printf(ifp, "Failed to disable multicast promiscuous "
682 		    "mode, status: %s\n", i40e_stat_str(hw, status));
683 
684 		return;
685 	}
686 
687 	if_printf(ifp, "Disabled multicast promiscuous mode\n");
688 
689 	ixl_add_multi(vsi);
690 }
691 
692 /**
693  * ixl_del_multi - Delete multicast filters from the hardware
694  * @vsi: The VSI structure
695  * @all: Bool to determine if all the multicast filters should be removed
696  *
697  * In case number of multicast filters in the IFP drops to 127 entries,
698  * multicast promiscuous mode will be disabled and the filters will be reapplied
699  * to the hardware.
700  */
701 void
702 ixl_del_multi(struct ixl_vsi *vsi, bool all)
703 {
704 	int			to_del_cnt = 0, vsi_mcnt = 0;
705 	if_t			ifp = vsi->ifp;
706 	struct ixl_mac_filter	*f, *fn;
707 	struct ixl_ftl_head	to_del;
708 
709 	IOCTL_DEBUGOUT("ixl_del_multi: begin");
710 
711 	LIST_INIT(&to_del);
712 	/* Search for removed multicast addresses */
713 	LIST_FOREACH_SAFE(f, &vsi->ftl, ftle, fn) {
714 		if ((f->flags & IXL_FILTER_MC) == 0)
715 			continue;
716 
717 		/* Count all the multicast filters in the VSI for comparison */
718 		vsi_mcnt++;
719 
720 		if (!all && if_foreach_llmaddr(ifp, ixl_match_maddr, f) != 0)
721 			continue;
722 
723 		LIST_REMOVE(f, ftle);
724 		LIST_INSERT_HEAD(&to_del, f, ftle);
725 		to_del_cnt++;
726 	}
727 
728 	if (to_del_cnt > 0) {
729 		ixl_del_hw_filters(vsi, &to_del, to_del_cnt);
730 		return;
731 	}
732 
733 	ixl_dis_multi_promisc(vsi, vsi_mcnt);
734 
735 	IOCTL_DEBUGOUT("ixl_del_multi: end");
736 }
737 
738 void
739 ixl_link_up_msg(struct ixl_pf *pf)
740 {
741 	struct i40e_hw *hw = &pf->hw;
742 	if_t ifp = pf->vsi.ifp;
743 	char *req_fec_string, *neg_fec_string;
744 	u8 fec_abilities;
745 
746 	fec_abilities = hw->phy.link_info.req_fec_info;
747 	/* If both RS and KR are requested, only show RS */
748 	if (fec_abilities & I40E_AQ_REQUEST_FEC_RS)
749 		req_fec_string = ixl_fec_string[0];
750 	else if (fec_abilities & I40E_AQ_REQUEST_FEC_KR)
751 		req_fec_string = ixl_fec_string[1];
752 	else
753 		req_fec_string = ixl_fec_string[2];
754 
755 	if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
756 		neg_fec_string = ixl_fec_string[0];
757 	else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
758 		neg_fec_string = ixl_fec_string[1];
759 	else
760 		neg_fec_string = ixl_fec_string[2];
761 
762 	log(LOG_NOTICE, "%s: Link is up, %s Full Duplex, Requested FEC: %s, Negotiated FEC: %s, Autoneg: %s, Flow Control: %s\n",
763 	    if_name(ifp),
764 	    ixl_link_speed_string(hw->phy.link_info.link_speed),
765 	    req_fec_string, neg_fec_string,
766 	    (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) ? "True" : "False",
767 	    (hw->phy.link_info.an_info & I40E_AQ_LINK_PAUSE_TX &&
768 	        hw->phy.link_info.an_info & I40E_AQ_LINK_PAUSE_RX) ?
769 		ixl_fc_string[3] : (hw->phy.link_info.an_info & I40E_AQ_LINK_PAUSE_TX) ?
770 		ixl_fc_string[2] : (hw->phy.link_info.an_info & I40E_AQ_LINK_PAUSE_RX) ?
771 		ixl_fc_string[1] : ixl_fc_string[0]);
772 }
773 
774 /*
775  * Configure admin queue/misc interrupt cause registers in hardware.
776  */
777 void
778 ixl_configure_intr0_msix(struct ixl_pf *pf)
779 {
780 	struct i40e_hw *hw = &pf->hw;
781 	u32 reg;
782 
783 	/* First set up the adminq - vector 0 */
784 	wr32(hw, I40E_PFINT_ICR0_ENA, 0);  /* disable all */
785 	rd32(hw, I40E_PFINT_ICR0);         /* read to clear */
786 
787 	reg = I40E_PFINT_ICR0_ENA_ECC_ERR_MASK |
788 	    I40E_PFINT_ICR0_ENA_GRST_MASK |
789 	    I40E_PFINT_ICR0_ENA_HMC_ERR_MASK |
790 	    I40E_PFINT_ICR0_ENA_ADMINQ_MASK |
791 	    I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK |
792 	    I40E_PFINT_ICR0_ENA_VFLR_MASK |
793 	    I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK |
794 	    I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK;
795 	wr32(hw, I40E_PFINT_ICR0_ENA, reg);
796 
797 	/*
798 	 * 0x7FF is the end of the queue list.
799 	 * This means we won't use MSI-X vector 0 for a queue interrupt
800 	 * in MSI-X mode.
801 	 */
802 	wr32(hw, I40E_PFINT_LNKLST0, 0x7FF);
803 	/* Value is in 2 usec units, so 0x3E is 62*2 = 124 usecs. */
804 	wr32(hw, I40E_PFINT_ITR0(IXL_RX_ITR), 0x3E);
805 
806 	wr32(hw, I40E_PFINT_DYN_CTL0,
807 	    I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK |
808 	    I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK);
809 
810 	wr32(hw, I40E_PFINT_STAT_CTL0, 0);
811 }
812 
813 void
814 ixl_add_ifmedia(struct ifmedia *media, u64 phy_types)
815 {
816 	/* Display supported media types */
817 	if (phy_types & (I40E_CAP_PHY_TYPE_100BASE_TX))
818 		ifmedia_add(media, IFM_ETHER | IFM_100_TX, 0, NULL);
819 
820 	if (phy_types & (I40E_CAP_PHY_TYPE_1000BASE_T))
821 		ifmedia_add(media, IFM_ETHER | IFM_1000_T, 0, NULL);
822 	if (phy_types & (I40E_CAP_PHY_TYPE_1000BASE_SX))
823 		ifmedia_add(media, IFM_ETHER | IFM_1000_SX, 0, NULL);
824 	if (phy_types & (I40E_CAP_PHY_TYPE_1000BASE_LX))
825 		ifmedia_add(media, IFM_ETHER | IFM_1000_LX, 0, NULL);
826 
827 	if (phy_types & (I40E_CAP_PHY_TYPE_2_5GBASE_T))
828 		ifmedia_add(media, IFM_ETHER | IFM_2500_T, 0, NULL);
829 
830 	if (phy_types & (I40E_CAP_PHY_TYPE_5GBASE_T))
831 		ifmedia_add(media, IFM_ETHER | IFM_5000_T, 0, NULL);
832 
833 	if (phy_types & (I40E_CAP_PHY_TYPE_XAUI) ||
834 	    phy_types & (I40E_CAP_PHY_TYPE_XFI) ||
835 	    phy_types & (I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU))
836 		ifmedia_add(media, IFM_ETHER | IFM_10G_TWINAX, 0, NULL);
837 
838 	if (phy_types & (I40E_CAP_PHY_TYPE_10GBASE_SR))
839 		ifmedia_add(media, IFM_ETHER | IFM_10G_SR, 0, NULL);
840 	if (phy_types & (I40E_CAP_PHY_TYPE_10GBASE_LR))
841 		ifmedia_add(media, IFM_ETHER | IFM_10G_LR, 0, NULL);
842 	if (phy_types & (I40E_CAP_PHY_TYPE_10GBASE_T))
843 		ifmedia_add(media, IFM_ETHER | IFM_10G_T, 0, NULL);
844 
845 	if (phy_types & (I40E_CAP_PHY_TYPE_40GBASE_CR4) ||
846 	    phy_types & (I40E_CAP_PHY_TYPE_40GBASE_CR4_CU) ||
847 	    phy_types & (I40E_CAP_PHY_TYPE_40GBASE_AOC) ||
848 	    phy_types & (I40E_CAP_PHY_TYPE_XLAUI) ||
849 	    phy_types & (I40E_CAP_PHY_TYPE_40GBASE_KR4))
850 		ifmedia_add(media, IFM_ETHER | IFM_40G_CR4, 0, NULL);
851 	if (phy_types & (I40E_CAP_PHY_TYPE_40GBASE_SR4))
852 		ifmedia_add(media, IFM_ETHER | IFM_40G_SR4, 0, NULL);
853 	if (phy_types & (I40E_CAP_PHY_TYPE_40GBASE_LR4))
854 		ifmedia_add(media, IFM_ETHER | IFM_40G_LR4, 0, NULL);
855 
856 	if (phy_types & (I40E_CAP_PHY_TYPE_1000BASE_KX))
857 		ifmedia_add(media, IFM_ETHER | IFM_1000_KX, 0, NULL);
858 
859 	if (phy_types & (I40E_CAP_PHY_TYPE_10GBASE_CR1_CU)
860 	    || phy_types & (I40E_CAP_PHY_TYPE_10GBASE_CR1))
861 		ifmedia_add(media, IFM_ETHER | IFM_10G_CR1, 0, NULL);
862 	if (phy_types & (I40E_CAP_PHY_TYPE_10GBASE_AOC))
863 		ifmedia_add(media, IFM_ETHER | IFM_10G_AOC, 0, NULL);
864 	if (phy_types & (I40E_CAP_PHY_TYPE_SFI))
865 		ifmedia_add(media, IFM_ETHER | IFM_10G_SFI, 0, NULL);
866 	if (phy_types & (I40E_CAP_PHY_TYPE_10GBASE_KX4))
867 		ifmedia_add(media, IFM_ETHER | IFM_10G_KX4, 0, NULL);
868 	if (phy_types & (I40E_CAP_PHY_TYPE_10GBASE_KR))
869 		ifmedia_add(media, IFM_ETHER | IFM_10G_KR, 0, NULL);
870 
871 	if (phy_types & (I40E_CAP_PHY_TYPE_20GBASE_KR2))
872 		ifmedia_add(media, IFM_ETHER | IFM_20G_KR2, 0, NULL);
873 
874 	if (phy_types & (I40E_CAP_PHY_TYPE_40GBASE_KR4))
875 		ifmedia_add(media, IFM_ETHER | IFM_40G_KR4, 0, NULL);
876 	if (phy_types & (I40E_CAP_PHY_TYPE_XLPPI))
877 		ifmedia_add(media, IFM_ETHER | IFM_40G_XLPPI, 0, NULL);
878 
879 	if (phy_types & (I40E_CAP_PHY_TYPE_25GBASE_KR))
880 		ifmedia_add(media, IFM_ETHER | IFM_25G_KR, 0, NULL);
881 	if (phy_types & (I40E_CAP_PHY_TYPE_25GBASE_CR))
882 		ifmedia_add(media, IFM_ETHER | IFM_25G_CR, 0, NULL);
883 	if (phy_types & (I40E_CAP_PHY_TYPE_25GBASE_SR))
884 		ifmedia_add(media, IFM_ETHER | IFM_25G_SR, 0, NULL);
885 	if (phy_types & (I40E_CAP_PHY_TYPE_25GBASE_LR))
886 		ifmedia_add(media, IFM_ETHER | IFM_25G_LR, 0, NULL);
887 	if (phy_types & (I40E_CAP_PHY_TYPE_25GBASE_AOC))
888 		ifmedia_add(media, IFM_ETHER | IFM_25G_AOC, 0, NULL);
889 	if (phy_types & (I40E_CAP_PHY_TYPE_25GBASE_ACC))
890 		ifmedia_add(media, IFM_ETHER | IFM_25G_ACC, 0, NULL);
891 }
892 
893 /*********************************************************************
894  *
895  *  Get Firmware Switch configuration
896  *	- this will need to be more robust when more complex
897  *	  switch configurations are enabled.
898  *
899  **********************************************************************/
900 int
901 ixl_switch_config(struct ixl_pf *pf)
902 {
903 	struct i40e_hw	*hw = &pf->hw;
904 	struct ixl_vsi	*vsi = &pf->vsi;
905 	device_t 	dev = iflib_get_dev(vsi->ctx);
906 	struct i40e_aqc_get_switch_config_resp *sw_config;
907 	u8	aq_buf[I40E_AQ_LARGE_BUF];
908 	int	ret;
909 	u16	next = 0;
910 
911 	memset(&aq_buf, 0, sizeof(aq_buf));
912 	sw_config = (struct i40e_aqc_get_switch_config_resp *)aq_buf;
913 	ret = i40e_aq_get_switch_config(hw, sw_config,
914 	    sizeof(aq_buf), &next, NULL);
915 	if (ret) {
916 		device_printf(dev, "aq_get_switch_config() failed, error %d,"
917 		    " aq_error %d\n", ret, pf->hw.aq.asq_last_status);
918 		return (ret);
919 	}
920 	if (pf->dbg_mask & IXL_DBG_SWITCH_INFO) {
921 		device_printf(dev,
922 		    "Switch config: header reported: %d in structure, %d total\n",
923 		    LE16_TO_CPU(sw_config->header.num_reported),
924 		    LE16_TO_CPU(sw_config->header.num_total));
925 		for (int i = 0;
926 		    i < LE16_TO_CPU(sw_config->header.num_reported); i++) {
927 			device_printf(dev,
928 			    "-> %d: type=%d seid=%d uplink=%d downlink=%d\n", i,
929 			    sw_config->element[i].element_type,
930 			    LE16_TO_CPU(sw_config->element[i].seid),
931 			    LE16_TO_CPU(sw_config->element[i].uplink_seid),
932 			    LE16_TO_CPU(sw_config->element[i].downlink_seid));
933 		}
934 	}
935 	/* Simplified due to a single VSI */
936 	vsi->uplink_seid = LE16_TO_CPU(sw_config->element[0].uplink_seid);
937 	vsi->downlink_seid = LE16_TO_CPU(sw_config->element[0].downlink_seid);
938 	vsi->seid = LE16_TO_CPU(sw_config->element[0].seid);
939 	return (ret);
940 }
941 
942 void
943 ixl_vsi_add_sysctls(struct ixl_vsi * vsi, const char * sysctl_name, bool queues_sysctls)
944 {
945 	struct sysctl_oid *tree;
946 	struct sysctl_oid_list *child;
947 	struct sysctl_oid_list *vsi_list;
948 
949 	tree = device_get_sysctl_tree(vsi->dev);
950 	child = SYSCTL_CHILDREN(tree);
951 	vsi->vsi_node = SYSCTL_ADD_NODE(&vsi->sysctl_ctx, child, OID_AUTO, sysctl_name,
952 			CTLFLAG_RD, NULL, "VSI Number");
953 
954 	vsi_list = SYSCTL_CHILDREN(vsi->vsi_node);
955 	ixl_add_sysctls_eth_stats(&vsi->sysctl_ctx, vsi_list, &vsi->eth_stats);
956 
957 	/* Copy of netstat RX errors counter for validation purposes */
958 	SYSCTL_ADD_UQUAD(&vsi->sysctl_ctx, vsi_list, OID_AUTO, "rx_errors",
959 			CTLFLAG_RD, &vsi->ierrors,
960 			"RX packet errors");
961 
962 	if (queues_sysctls)
963 		ixl_vsi_add_queues_stats(vsi, &vsi->sysctl_ctx);
964 }
965 
966 /*
967  * Used to set the Tx ITR value for all of the PF LAN VSI's queues.
968  * Writes to the ITR registers immediately.
969  */
970 static int
971 ixl_sysctl_pf_tx_itr(SYSCTL_HANDLER_ARGS)
972 {
973 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
974 	device_t dev = pf->dev;
975 	int error = 0;
976 	int requested_tx_itr;
977 
978 	requested_tx_itr = pf->tx_itr;
979 	error = sysctl_handle_int(oidp, &requested_tx_itr, 0, req);
980 	if ((error) || (req->newptr == NULL))
981 		return (error);
982 	if (pf->dynamic_tx_itr) {
983 		device_printf(dev,
984 		    "Cannot set TX itr value while dynamic TX itr is enabled\n");
985 		    return (EINVAL);
986 	}
987 	if (requested_tx_itr < 0 || requested_tx_itr > IXL_MAX_ITR) {
988 		device_printf(dev,
989 		    "Invalid TX itr value; value must be between 0 and %d\n",
990 		        IXL_MAX_ITR);
991 		return (EINVAL);
992 	}
993 
994 	pf->tx_itr = requested_tx_itr;
995 	ixl_configure_tx_itr(pf);
996 
997 	return (error);
998 }
999 
1000 /*
1001  * Used to set the Rx ITR value for all of the PF LAN VSI's queues.
1002  * Writes to the ITR registers immediately.
1003  */
1004 static int
1005 ixl_sysctl_pf_rx_itr(SYSCTL_HANDLER_ARGS)
1006 {
1007 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
1008 	device_t dev = pf->dev;
1009 	int error = 0;
1010 	int requested_rx_itr;
1011 
1012 	requested_rx_itr = pf->rx_itr;
1013 	error = sysctl_handle_int(oidp, &requested_rx_itr, 0, req);
1014 	if ((error) || (req->newptr == NULL))
1015 		return (error);
1016 	if (pf->dynamic_rx_itr) {
1017 		device_printf(dev,
1018 		    "Cannot set RX itr value while dynamic RX itr is enabled\n");
1019 		    return (EINVAL);
1020 	}
1021 	if (requested_rx_itr < 0 || requested_rx_itr > IXL_MAX_ITR) {
1022 		device_printf(dev,
1023 		    "Invalid RX itr value; value must be between 0 and %d\n",
1024 		        IXL_MAX_ITR);
1025 		return (EINVAL);
1026 	}
1027 
1028 	pf->rx_itr = requested_rx_itr;
1029 	ixl_configure_rx_itr(pf);
1030 
1031 	return (error);
1032 }
1033 
1034 void
1035 ixl_add_sysctls_mac_stats(struct sysctl_ctx_list *ctx,
1036 	struct sysctl_oid_list *child,
1037 	struct i40e_hw_port_stats *stats)
1038 {
1039 	struct sysctl_oid *stat_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO,
1040 	    "mac", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Mac Statistics");
1041 	struct sysctl_oid_list *stat_list = SYSCTL_CHILDREN(stat_node);
1042 
1043 	struct i40e_eth_stats *eth_stats = &stats->eth;
1044 	ixl_add_sysctls_eth_stats(ctx, stat_list, eth_stats);
1045 
1046 	struct ixl_sysctl_info ctls[] =
1047 	{
1048 		{&stats->crc_errors, "crc_errors", "CRC Errors"},
1049 		{&stats->illegal_bytes, "illegal_bytes", "Illegal Byte Errors"},
1050 		{&stats->mac_local_faults, "local_faults", "MAC Local Faults"},
1051 		{&stats->mac_remote_faults, "remote_faults", "MAC Remote Faults"},
1052 		{&stats->rx_length_errors, "rx_length_errors", "Receive Length Errors"},
1053 		/* Packet Reception Stats */
1054 		{&stats->rx_size_64, "rx_frames_64", "64 byte frames received"},
1055 		{&stats->rx_size_127, "rx_frames_65_127", "65-127 byte frames received"},
1056 		{&stats->rx_size_255, "rx_frames_128_255", "128-255 byte frames received"},
1057 		{&stats->rx_size_511, "rx_frames_256_511", "256-511 byte frames received"},
1058 		{&stats->rx_size_1023, "rx_frames_512_1023", "512-1023 byte frames received"},
1059 		{&stats->rx_size_1522, "rx_frames_1024_1522", "1024-1522 byte frames received"},
1060 		{&stats->rx_size_big, "rx_frames_big", "1523-9522 byte frames received"},
1061 		{&stats->rx_undersize, "rx_undersize", "Undersized packets received"},
1062 		{&stats->rx_fragments, "rx_fragmented", "Fragmented packets received"},
1063 		{&stats->rx_oversize, "rx_oversized", "Oversized packets received"},
1064 		{&stats->rx_jabber, "rx_jabber", "Received Jabber"},
1065 		{&stats->checksum_error, "checksum_errors", "Checksum Errors"},
1066 		/* Packet Transmission Stats */
1067 		{&stats->tx_size_64, "tx_frames_64", "64 byte frames transmitted"},
1068 		{&stats->tx_size_127, "tx_frames_65_127", "65-127 byte frames transmitted"},
1069 		{&stats->tx_size_255, "tx_frames_128_255", "128-255 byte frames transmitted"},
1070 		{&stats->tx_size_511, "tx_frames_256_511", "256-511 byte frames transmitted"},
1071 		{&stats->tx_size_1023, "tx_frames_512_1023", "512-1023 byte frames transmitted"},
1072 		{&stats->tx_size_1522, "tx_frames_1024_1522", "1024-1522 byte frames transmitted"},
1073 		{&stats->tx_size_big, "tx_frames_big", "1523-9522 byte frames transmitted"},
1074 		/* Flow control */
1075 		{&stats->link_xon_tx, "xon_txd", "Link XON transmitted"},
1076 		{&stats->link_xon_rx, "xon_recvd", "Link XON received"},
1077 		{&stats->link_xoff_tx, "xoff_txd", "Link XOFF transmitted"},
1078 		{&stats->link_xoff_rx, "xoff_recvd", "Link XOFF received"},
1079 		/* End */
1080 		{0,0,0}
1081 	};
1082 
1083 	struct ixl_sysctl_info *entry = ctls;
1084 	while (entry->stat != 0)
1085 	{
1086 		SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, entry->name,
1087 				CTLFLAG_RD, entry->stat,
1088 				entry->description);
1089 		entry++;
1090 	}
1091 }
1092 
1093 void
1094 ixl_set_rss_key(struct ixl_pf *pf)
1095 {
1096 	struct i40e_hw *hw = &pf->hw;
1097 	struct ixl_vsi *vsi = &pf->vsi;
1098 	device_t	dev = pf->dev;
1099 	u32 rss_seed[IXL_RSS_KEY_SIZE_REG];
1100 	enum i40e_status_code status;
1101 
1102 #ifdef RSS
1103         /* Fetch the configured RSS key */
1104         rss_getkey((uint8_t *) &rss_seed);
1105 #else
1106 	ixl_get_default_rss_key(rss_seed);
1107 #endif
1108 	/* Fill out hash function seed */
1109 	if (hw->mac.type == I40E_MAC_X722) {
1110 		struct i40e_aqc_get_set_rss_key_data key_data;
1111 		bcopy(rss_seed, &key_data, 52);
1112 		status = i40e_aq_set_rss_key(hw, vsi->vsi_num, &key_data);
1113 		if (status)
1114 			device_printf(dev,
1115 			    "i40e_aq_set_rss_key status %s, error %s\n",
1116 			    i40e_stat_str(hw, status),
1117 			    i40e_aq_str(hw, hw->aq.asq_last_status));
1118 	} else {
1119 		for (int i = 0; i < IXL_RSS_KEY_SIZE_REG; i++)
1120 			i40e_write_rx_ctl(hw, I40E_PFQF_HKEY(i), rss_seed[i]);
1121 	}
1122 }
1123 
1124 /*
1125  * Configure enabled PCTYPES for RSS.
1126  */
1127 void
1128 ixl_set_rss_pctypes(struct ixl_pf *pf)
1129 {
1130 	struct i40e_hw *hw = &pf->hw;
1131 	u64		set_hena = 0, hena;
1132 
1133 #ifdef RSS
1134 	u32		rss_hash_config;
1135 
1136 	rss_hash_config = rss_gethashconfig();
1137 	if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4)
1138                 set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
1139 	if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4)
1140                 set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
1141 	if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV4)
1142                 set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP);
1143 	if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6)
1144                 set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
1145 	if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX)
1146 		set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6);
1147 	if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6)
1148                 set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
1149         if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6)
1150                 set_hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP);
1151 #else
1152 	if (hw->mac.type == I40E_MAC_X722)
1153 		set_hena = IXL_DEFAULT_RSS_HENA_X722;
1154 	else
1155 		set_hena = IXL_DEFAULT_RSS_HENA_XL710;
1156 #endif
1157 	hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
1158 	    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
1159 	hena |= set_hena;
1160 	i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
1161 	i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
1162 
1163 }
1164 
1165 /*
1166 ** Setup the PF's RSS parameters.
1167 */
1168 void
1169 ixl_config_rss(struct ixl_pf *pf)
1170 {
1171 	ixl_set_rss_key(pf);
1172 	ixl_set_rss_pctypes(pf);
1173 	ixl_set_rss_hlut(pf);
1174 }
1175 
1176 /*
1177  * In some firmware versions there is default MAC/VLAN filter
1178  * configured which interferes with filters managed by driver.
1179  * Make sure it's removed.
1180  */
1181 void
1182 ixl_del_default_hw_filters(struct ixl_vsi *vsi)
1183 {
1184 	struct i40e_aqc_remove_macvlan_element_data e;
1185 
1186 	bzero(&e, sizeof(e));
1187 	bcopy(vsi->hw->mac.perm_addr, e.mac_addr, ETHER_ADDR_LEN);
1188 	e.vlan_tag = 0;
1189 	e.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH;
1190 	i40e_aq_remove_macvlan(vsi->hw, vsi->seid, &e, 1, NULL);
1191 
1192 	bzero(&e, sizeof(e));
1193 	bcopy(vsi->hw->mac.perm_addr, e.mac_addr, ETHER_ADDR_LEN);
1194 	e.vlan_tag = 0;
1195 	e.flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH |
1196 		I40E_AQC_MACVLAN_DEL_IGNORE_VLAN;
1197 	i40e_aq_remove_macvlan(vsi->hw, vsi->seid, &e, 1, NULL);
1198 }
1199 
1200 /*
1201 ** Initialize filter list and add filters that the hardware
1202 ** needs to know about.
1203 **
1204 ** Requires VSI's seid to be set before calling.
1205 */
1206 void
1207 ixl_init_filters(struct ixl_vsi *vsi)
1208 {
1209 	struct ixl_pf *pf = (struct ixl_pf *)vsi->back;
1210 
1211 	ixl_dbg_filter(pf, "%s: start\n", __func__);
1212 
1213 	/* Initialize mac filter list for VSI */
1214 	LIST_INIT(&vsi->ftl);
1215 	vsi->num_hw_filters = 0;
1216 
1217 	/* Receive broadcast Ethernet frames */
1218 	i40e_aq_set_vsi_broadcast(&pf->hw, vsi->seid, TRUE, NULL);
1219 
1220 	if (IXL_VSI_IS_VF(vsi))
1221 		return;
1222 
1223 	ixl_del_default_hw_filters(vsi);
1224 
1225 	ixl_add_filter(vsi, vsi->hw->mac.addr, IXL_VLAN_ANY);
1226 
1227 	/*
1228 	 * Prevent Tx flow control frames from being sent out by
1229 	 * non-firmware transmitters.
1230 	 * This affects every VSI in the PF.
1231 	 */
1232 #ifndef IXL_DEBUG_FC
1233 	i40e_add_filter_to_drop_tx_flow_control_frames(vsi->hw, vsi->seid);
1234 #else
1235 	if (pf->enable_tx_fc_filter)
1236 		i40e_add_filter_to_drop_tx_flow_control_frames(vsi->hw, vsi->seid);
1237 #endif
1238 }
1239 
1240 void
1241 ixl_reconfigure_filters(struct ixl_vsi *vsi)
1242 {
1243 	struct i40e_hw *hw = vsi->hw;
1244 	struct ixl_ftl_head tmp;
1245 	int cnt;
1246 
1247 	/*
1248 	 * The ixl_add_hw_filters function adds filters configured
1249 	 * in HW to a list in VSI. Move all filters to a temporary
1250 	 * list to avoid corrupting it by concatenating to itself.
1251 	 */
1252 	LIST_INIT(&tmp);
1253 	LIST_CONCAT(&tmp, &vsi->ftl, ixl_mac_filter, ftle);
1254 	cnt = vsi->num_hw_filters;
1255 	vsi->num_hw_filters = 0;
1256 
1257 	ixl_add_hw_filters(vsi, &tmp, cnt);
1258 
1259 	/*
1260 	 * When the vsi is allocated for the VFs, both vsi->hw and vsi->ifp
1261 	 * will be NULL. Furthermore, the ftl of such vsi already contains
1262 	 * IXL_VLAN_ANY filter so we can skip that as well.
1263 	 */
1264 	if (hw == NULL)
1265 		return;
1266 
1267 	/* Filter could be removed if MAC address was changed */
1268 	ixl_add_filter(vsi, hw->mac.addr, IXL_VLAN_ANY);
1269 
1270 	if ((if_getcapenable(vsi->ifp) & IFCAP_VLAN_HWFILTER) == 0)
1271 		return;
1272 	/*
1273 	 * VLAN HW filtering is enabled, make sure that filters
1274 	 * for all registered VLAN tags are configured
1275 	 */
1276 	ixl_add_vlan_filters(vsi, hw->mac.addr);
1277 }
1278 
1279 /*
1280  * This routine adds a MAC/VLAN filter to the software filter
1281  * list, then adds that new filter to the HW if it doesn't already
1282  * exist in the SW filter list.
1283  */
1284 void
1285 ixl_add_filter(struct ixl_vsi *vsi, const u8 *macaddr, s16 vlan)
1286 {
1287 	struct ixl_mac_filter	*f, *tmp;
1288 	struct ixl_pf		*pf;
1289 	device_t		dev;
1290 	struct ixl_ftl_head	to_add;
1291 	int			to_add_cnt;
1292 
1293 	pf = vsi->back;
1294 	dev = pf->dev;
1295 	to_add_cnt = 1;
1296 
1297 	ixl_dbg_filter(pf, "ixl_add_filter: " MAC_FORMAT ", vlan %4d\n",
1298 	    MAC_FORMAT_ARGS(macaddr), vlan);
1299 
1300 	/* Does one already exist */
1301 	f = ixl_find_filter(&vsi->ftl, macaddr, vlan);
1302 	if (f != NULL)
1303 		return;
1304 
1305 	LIST_INIT(&to_add);
1306 	f = ixl_new_filter(&to_add, macaddr, vlan);
1307 	if (f == NULL) {
1308 		device_printf(dev, "WARNING: no filter available!!\n");
1309 		return;
1310 	}
1311 	if (f->vlan != IXL_VLAN_ANY)
1312 		f->flags |= IXL_FILTER_VLAN;
1313 	else
1314 		vsi->num_macs++;
1315 
1316 	/*
1317 	** Is this the first vlan being registered, if so we
1318 	** need to remove the ANY filter that indicates we are
1319 	** not in a vlan, and replace that with a 0 filter.
1320 	*/
1321 	if ((vlan != IXL_VLAN_ANY) && (vsi->num_vlans == 1)) {
1322 		tmp = ixl_find_filter(&vsi->ftl, macaddr, IXL_VLAN_ANY);
1323 		if (tmp != NULL) {
1324 			struct ixl_ftl_head to_del;
1325 
1326 			/* Prepare new filter first to avoid removing
1327 			 * VLAN_ANY filter if allocation fails */
1328 			f = ixl_new_filter(&to_add, macaddr, 0);
1329 			if (f == NULL) {
1330 				device_printf(dev, "WARNING: no filter available!!\n");
1331 				free(LIST_FIRST(&to_add), M_IXL);
1332 				return;
1333 			}
1334 			to_add_cnt++;
1335 
1336 			LIST_REMOVE(tmp, ftle);
1337 			LIST_INIT(&to_del);
1338 			LIST_INSERT_HEAD(&to_del, tmp, ftle);
1339 			ixl_del_hw_filters(vsi, &to_del, 1);
1340 		}
1341 	}
1342 
1343 	ixl_add_hw_filters(vsi, &to_add, to_add_cnt);
1344 }
1345 
1346 /**
1347  * ixl_add_vlan_filters - Add MAC/VLAN filters for all registered VLANs
1348  * @vsi: pointer to VSI
1349  * @macaddr: MAC address
1350  *
1351  * Adds MAC/VLAN filter for each VLAN configured on the interface
1352  * if there is enough HW filters. Otherwise adds a single filter
1353  * for all tagged and untagged frames to allow all configured VLANs
1354  * to recieve traffic.
1355  */
1356 void
1357 ixl_add_vlan_filters(struct ixl_vsi *vsi, const u8 *macaddr)
1358 {
1359 	struct ixl_ftl_head to_add;
1360 	struct ixl_mac_filter *f;
1361 	int to_add_cnt = 0;
1362 	int i, vlan = 0;
1363 
1364 	if (vsi->num_vlans == 0 || vsi->num_vlans > IXL_MAX_VLAN_FILTERS) {
1365 		ixl_add_filter(vsi, macaddr, IXL_VLAN_ANY);
1366 		return;
1367 	}
1368 	LIST_INIT(&to_add);
1369 
1370 	/* Add filter for untagged frames if it does not exist yet */
1371 	f = ixl_find_filter(&vsi->ftl, macaddr, 0);
1372 	if (f == NULL) {
1373 		f = ixl_new_filter(&to_add, macaddr, 0);
1374 		if (f == NULL) {
1375 			device_printf(vsi->dev, "WARNING: no filter available!!\n");
1376 			return;
1377 		}
1378 		to_add_cnt++;
1379 	}
1380 
1381 	for (i = 1; i < EVL_VLID_MASK; i = vlan + 1) {
1382 		bit_ffs_at(vsi->vlans_map, i, IXL_VLANS_MAP_LEN, &vlan);
1383 		if (vlan == -1)
1384 			break;
1385 
1386 		/* Does one already exist */
1387 		f = ixl_find_filter(&vsi->ftl, macaddr, vlan);
1388 		if (f != NULL)
1389 			continue;
1390 
1391 		f = ixl_new_filter(&to_add, macaddr, vlan);
1392 		if (f == NULL) {
1393 			device_printf(vsi->dev, "WARNING: no filter available!!\n");
1394 			ixl_free_filters(&to_add);
1395 			return;
1396 		}
1397 		to_add_cnt++;
1398 	}
1399 
1400 	ixl_add_hw_filters(vsi, &to_add, to_add_cnt);
1401 }
1402 
1403 void
1404 ixl_del_filter(struct ixl_vsi *vsi, const u8 *macaddr, s16 vlan)
1405 {
1406 	struct ixl_mac_filter *f, *tmp;
1407 	struct ixl_ftl_head ftl_head;
1408 	int to_del_cnt = 1;
1409 
1410 	ixl_dbg_filter((struct ixl_pf *)vsi->back,
1411 	    "ixl_del_filter: " MAC_FORMAT ", vlan %4d\n",
1412 	    MAC_FORMAT_ARGS(macaddr), vlan);
1413 
1414 	f = ixl_find_filter(&vsi->ftl, macaddr, vlan);
1415 	if (f == NULL)
1416 		return;
1417 
1418 	LIST_REMOVE(f, ftle);
1419 	LIST_INIT(&ftl_head);
1420 	LIST_INSERT_HEAD(&ftl_head, f, ftle);
1421 	if (f->vlan == IXL_VLAN_ANY && (f->flags & IXL_FILTER_VLAN) != 0)
1422 		vsi->num_macs--;
1423 
1424 	/* If this is not the last vlan just remove the filter */
1425 	if (vlan == IXL_VLAN_ANY || vsi->num_vlans > 0) {
1426 		ixl_del_hw_filters(vsi, &ftl_head, to_del_cnt);
1427 		return;
1428 	}
1429 
1430 	/* It's the last vlan, we need to switch back to a non-vlan filter */
1431 	tmp = ixl_find_filter(&vsi->ftl, macaddr, 0);
1432 	if (tmp != NULL) {
1433 		LIST_REMOVE(tmp, ftle);
1434 		LIST_INSERT_AFTER(f, tmp, ftle);
1435 		to_del_cnt++;
1436 	}
1437 	ixl_del_hw_filters(vsi, &ftl_head, to_del_cnt);
1438 
1439 	ixl_add_filter(vsi, macaddr, IXL_VLAN_ANY);
1440 }
1441 
1442 /**
1443  * ixl_del_all_vlan_filters - Delete all VLAN filters with given MAC
1444  * @vsi: VSI which filters need to be removed
1445  * @macaddr: MAC address
1446  *
1447  * Remove all MAC/VLAN filters with a given MAC address. For multicast
1448  * addresses there is always single filter for all VLANs used (IXL_VLAN_ANY)
1449  * so skip them to speed up processing. Those filters should be removed
1450  * using ixl_del_filter function.
1451  */
1452 void
1453 ixl_del_all_vlan_filters(struct ixl_vsi *vsi, const u8 *macaddr)
1454 {
1455 	struct ixl_mac_filter *f, *tmp;
1456 	struct ixl_ftl_head to_del;
1457 	int to_del_cnt = 0;
1458 
1459 	LIST_INIT(&to_del);
1460 
1461 	LIST_FOREACH_SAFE(f, &vsi->ftl, ftle, tmp) {
1462 		if ((f->flags & IXL_FILTER_MC) != 0 ||
1463 		    !ixl_ether_is_equal(f->macaddr, macaddr))
1464 			continue;
1465 
1466 		LIST_REMOVE(f, ftle);
1467 		LIST_INSERT_HEAD(&to_del, f, ftle);
1468 		to_del_cnt++;
1469 	}
1470 
1471 	ixl_dbg_filter((struct ixl_pf *)vsi->back,
1472 	    "%s: " MAC_FORMAT ", to_del_cnt: %d\n",
1473 	    __func__, MAC_FORMAT_ARGS(macaddr), to_del_cnt);
1474 	if (to_del_cnt > 0)
1475 		ixl_del_hw_filters(vsi, &to_del, to_del_cnt);
1476 }
1477 
1478 /*
1479 ** Find the filter with both matching mac addr and vlan id
1480 */
1481 struct ixl_mac_filter *
1482 ixl_find_filter(struct ixl_ftl_head *headp, const u8 *macaddr, s16 vlan)
1483 {
1484 	struct ixl_mac_filter	*f;
1485 
1486 	LIST_FOREACH(f, headp, ftle) {
1487 		if (ixl_ether_is_equal(f->macaddr, macaddr) &&
1488 		    (f->vlan == vlan)) {
1489 			return (f);
1490 		}
1491 	}
1492 
1493 	return (NULL);
1494 }
1495 
1496 /*
1497 ** This routine takes additions to the vsi filter
1498 ** table and creates an Admin Queue call to create
1499 ** the filters in the hardware.
1500 */
1501 void
1502 ixl_add_hw_filters(struct ixl_vsi *vsi, struct ixl_ftl_head *to_add, int cnt)
1503 {
1504 	struct i40e_aqc_add_macvlan_element_data *a, *b;
1505 	struct ixl_mac_filter	*f, *fn;
1506 	struct ixl_pf		*pf;
1507 	struct i40e_hw		*hw;
1508 	device_t		dev;
1509 	enum i40e_status_code	status;
1510 	int			j = 0;
1511 
1512 	pf = vsi->back;
1513 	dev = vsi->dev;
1514 	hw = &pf->hw;
1515 
1516 	ixl_dbg_filter(pf, "ixl_add_hw_filters: cnt: %d\n", cnt);
1517 
1518 	if (cnt < 1) {
1519 		ixl_dbg_info(pf, "ixl_add_hw_filters: cnt == 0\n");
1520 		return;
1521 	}
1522 
1523 	a = malloc(sizeof(struct i40e_aqc_add_macvlan_element_data) * cnt,
1524 	    M_IXL, M_NOWAIT | M_ZERO);
1525 	if (a == NULL) {
1526 		device_printf(dev, "add_hw_filters failed to get memory\n");
1527 		return;
1528 	}
1529 
1530 	LIST_FOREACH(f, to_add, ftle) {
1531 		b = &a[j]; // a pox on fvl long names :)
1532 		bcopy(f->macaddr, b->mac_addr, ETHER_ADDR_LEN);
1533 		if (f->vlan == IXL_VLAN_ANY) {
1534 			b->vlan_tag = 0;
1535 			b->flags = I40E_AQC_MACVLAN_ADD_IGNORE_VLAN;
1536 		} else {
1537 			b->vlan_tag = f->vlan;
1538 			b->flags = 0;
1539 		}
1540 		b->flags |= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH;
1541 		/* Some FW versions do not set match method
1542 		 * when adding filters fails. Initialize it with
1543 		 * expected error value to allow detection which
1544 		 * filters were not added */
1545 		b->match_method = I40E_AQC_MM_ERR_NO_RES;
1546 		ixl_dbg_filter(pf, "ADD: " MAC_FORMAT "\n",
1547 		    MAC_FORMAT_ARGS(f->macaddr));
1548 
1549 		if (++j == cnt)
1550 			break;
1551 	}
1552 	if (j != cnt) {
1553 		/* Something went wrong */
1554 		device_printf(dev,
1555 		    "%s ERROR: list of filters to short expected: %d, found: %d\n",
1556 		    __func__, cnt, j);
1557 		ixl_free_filters(to_add);
1558 		goto out_free;
1559 	}
1560 
1561 	status = i40e_aq_add_macvlan(hw, vsi->seid, a, j, NULL);
1562 	if (status == I40E_SUCCESS) {
1563 		LIST_CONCAT(&vsi->ftl, to_add, ixl_mac_filter, ftle);
1564 		vsi->num_hw_filters += j;
1565 		goto out_free;
1566 	}
1567 
1568 	device_printf(dev,
1569 	    "i40e_aq_add_macvlan status %s, error %s\n",
1570 	    i40e_stat_str(hw, status),
1571 	    i40e_aq_str(hw, hw->aq.asq_last_status));
1572 	j = 0;
1573 
1574 	/* Verify which filters were actually configured in HW
1575 	 * and add them to the list */
1576 	LIST_FOREACH_SAFE(f, to_add, ftle, fn) {
1577 		LIST_REMOVE(f, ftle);
1578 		if (a[j].match_method == I40E_AQC_MM_ERR_NO_RES) {
1579 			ixl_dbg_filter(pf,
1580 			    "%s filter " MAC_FORMAT " VTAG: %d not added\n",
1581 			    __func__,
1582 			    MAC_FORMAT_ARGS(f->macaddr),
1583 			    f->vlan);
1584 			free(f, M_IXL);
1585 		} else {
1586 			LIST_INSERT_HEAD(&vsi->ftl, f, ftle);
1587 			vsi->num_hw_filters++;
1588 		}
1589 		j++;
1590 	}
1591 
1592 out_free:
1593 	free(a, M_IXL);
1594 }
1595 
1596 /*
1597 ** This routine takes removals in the vsi filter
1598 ** table and creates an Admin Queue call to delete
1599 ** the filters in the hardware.
1600 */
1601 void
1602 ixl_del_hw_filters(struct ixl_vsi *vsi, struct ixl_ftl_head *to_del, int cnt)
1603 {
1604 	struct i40e_aqc_remove_macvlan_element_data *d, *e;
1605 	struct ixl_pf		*pf;
1606 	struct i40e_hw		*hw;
1607 	device_t		dev;
1608 	struct ixl_mac_filter	*f, *f_temp;
1609 	enum i40e_status_code	status;
1610 	int			j = 0;
1611 
1612 	pf = vsi->back;
1613 	hw = &pf->hw;
1614 	dev = vsi->dev;
1615 
1616 	ixl_dbg_filter(pf, "%s: start, cnt: %d\n", __func__, cnt);
1617 
1618 	d = malloc(sizeof(struct i40e_aqc_remove_macvlan_element_data) * cnt,
1619 	    M_IXL, M_NOWAIT | M_ZERO);
1620 	if (d == NULL) {
1621 		device_printf(dev, "%s: failed to get memory\n", __func__);
1622 		return;
1623 	}
1624 
1625 	LIST_FOREACH_SAFE(f, to_del, ftle, f_temp) {
1626 		e = &d[j]; // a pox on fvl long names :)
1627 		bcopy(f->macaddr, e->mac_addr, ETHER_ADDR_LEN);
1628 		e->flags = I40E_AQC_MACVLAN_DEL_PERFECT_MATCH;
1629 		if (f->vlan == IXL_VLAN_ANY) {
1630 			e->vlan_tag = 0;
1631 			e->flags |= I40E_AQC_MACVLAN_DEL_IGNORE_VLAN;
1632 		} else {
1633 			e->vlan_tag = f->vlan;
1634 		}
1635 
1636 		ixl_dbg_filter(pf, "DEL: " MAC_FORMAT "\n",
1637 		    MAC_FORMAT_ARGS(f->macaddr));
1638 
1639 		/* delete entry from the list */
1640 		LIST_REMOVE(f, ftle);
1641 		free(f, M_IXL);
1642 		if (++j == cnt)
1643 			break;
1644 	}
1645 	if (j != cnt || !LIST_EMPTY(to_del)) {
1646 		/* Something went wrong */
1647 		device_printf(dev,
1648 		    "%s ERROR: wrong size of list of filters, expected: %d, found: %d\n",
1649 		    __func__, cnt, j);
1650 		ixl_free_filters(to_del);
1651 		goto out_free;
1652 	}
1653 	status = i40e_aq_remove_macvlan(hw, vsi->seid, d, j, NULL);
1654 	if (status) {
1655 		device_printf(dev,
1656 		    "%s: i40e_aq_remove_macvlan status %s, error %s\n",
1657 		    __func__, i40e_stat_str(hw, status),
1658 		    i40e_aq_str(hw, hw->aq.asq_last_status));
1659 		for (int i = 0; i < j; i++) {
1660 			if (d[i].error_code == 0)
1661 				continue;
1662 			device_printf(dev,
1663 			    "%s Filter does not exist " MAC_FORMAT " VTAG: %d\n",
1664 			    __func__, MAC_FORMAT_ARGS(d[i].mac_addr),
1665 			    d[i].vlan_tag);
1666 		}
1667 	}
1668 
1669 	vsi->num_hw_filters -= j;
1670 
1671 out_free:
1672 	free(d, M_IXL);
1673 
1674 	ixl_dbg_filter(pf, "%s: end\n", __func__);
1675 }
1676 
1677 int
1678 ixl_enable_tx_ring(struct ixl_pf *pf, struct ixl_pf_qtag *qtag, u16 vsi_qidx)
1679 {
1680 	struct i40e_hw	*hw = &pf->hw;
1681 	int		error = 0;
1682 	u32		reg;
1683 	u16		pf_qidx;
1684 
1685 	pf_qidx = ixl_pf_qidx_from_vsi_qidx(qtag, vsi_qidx);
1686 
1687 	ixl_dbg(pf, IXL_DBG_EN_DIS,
1688 	    "Enabling PF TX ring %4d / VSI TX ring %4d...\n",
1689 	    pf_qidx, vsi_qidx);
1690 
1691 	i40e_pre_tx_queue_cfg(hw, pf_qidx, TRUE);
1692 
1693 	reg = rd32(hw, I40E_QTX_ENA(pf_qidx));
1694 	reg |= I40E_QTX_ENA_QENA_REQ_MASK |
1695 	    I40E_QTX_ENA_QENA_STAT_MASK;
1696 	wr32(hw, I40E_QTX_ENA(pf_qidx), reg);
1697 	/* Verify the enable took */
1698 	for (int j = 0; j < 10; j++) {
1699 		reg = rd32(hw, I40E_QTX_ENA(pf_qidx));
1700 		if (reg & I40E_QTX_ENA_QENA_STAT_MASK)
1701 			break;
1702 		i40e_usec_delay(10);
1703 	}
1704 	if ((reg & I40E_QTX_ENA_QENA_STAT_MASK) == 0) {
1705 		device_printf(pf->dev, "TX queue %d still disabled!\n",
1706 		    pf_qidx);
1707 		error = ETIMEDOUT;
1708 	}
1709 
1710 	return (error);
1711 }
1712 
1713 int
1714 ixl_enable_rx_ring(struct ixl_pf *pf, struct ixl_pf_qtag *qtag, u16 vsi_qidx)
1715 {
1716 	struct i40e_hw	*hw = &pf->hw;
1717 	int		error = 0;
1718 	u32		reg;
1719 	u16		pf_qidx;
1720 
1721 	pf_qidx = ixl_pf_qidx_from_vsi_qidx(qtag, vsi_qidx);
1722 
1723 	ixl_dbg(pf, IXL_DBG_EN_DIS,
1724 	    "Enabling PF RX ring %4d / VSI RX ring %4d...\n",
1725 	    pf_qidx, vsi_qidx);
1726 
1727 	reg = rd32(hw, I40E_QRX_ENA(pf_qidx));
1728 	reg |= I40E_QRX_ENA_QENA_REQ_MASK |
1729 	    I40E_QRX_ENA_QENA_STAT_MASK;
1730 	wr32(hw, I40E_QRX_ENA(pf_qidx), reg);
1731 	/* Verify the enable took */
1732 	for (int j = 0; j < 10; j++) {
1733 		reg = rd32(hw, I40E_QRX_ENA(pf_qidx));
1734 		if (reg & I40E_QRX_ENA_QENA_STAT_MASK)
1735 			break;
1736 		i40e_usec_delay(10);
1737 	}
1738 	if ((reg & I40E_QRX_ENA_QENA_STAT_MASK) == 0) {
1739 		device_printf(pf->dev, "RX queue %d still disabled!\n",
1740 		    pf_qidx);
1741 		error = ETIMEDOUT;
1742 	}
1743 
1744 	return (error);
1745 }
1746 
1747 int
1748 ixl_enable_ring(struct ixl_pf *pf, struct ixl_pf_qtag *qtag, u16 vsi_qidx)
1749 {
1750 	int error = 0;
1751 
1752 	error = ixl_enable_tx_ring(pf, qtag, vsi_qidx);
1753 	/* Called function already prints error message */
1754 	if (error)
1755 		return (error);
1756 	error = ixl_enable_rx_ring(pf, qtag, vsi_qidx);
1757 	return (error);
1758 }
1759 
1760 /*
1761  * Returns error on first ring that is detected hung.
1762  */
1763 int
1764 ixl_disable_tx_ring(struct ixl_pf *pf, struct ixl_pf_qtag *qtag, u16 vsi_qidx)
1765 {
1766 	struct i40e_hw	*hw = &pf->hw;
1767 	int		error = 0;
1768 	u32		reg;
1769 	u16		pf_qidx;
1770 
1771 	pf_qidx = ixl_pf_qidx_from_vsi_qidx(qtag, vsi_qidx);
1772 
1773 	ixl_dbg(pf, IXL_DBG_EN_DIS,
1774 	    "Disabling PF TX ring %4d / VSI TX ring %4d...\n",
1775 	    pf_qidx, vsi_qidx);
1776 
1777 	i40e_pre_tx_queue_cfg(hw, pf_qidx, FALSE);
1778 	i40e_usec_delay(500);
1779 
1780 	reg = rd32(hw, I40E_QTX_ENA(pf_qidx));
1781 	reg &= ~I40E_QTX_ENA_QENA_REQ_MASK;
1782 	wr32(hw, I40E_QTX_ENA(pf_qidx), reg);
1783 	/* Verify the disable took */
1784 	for (int j = 0; j < 10; j++) {
1785 		reg = rd32(hw, I40E_QTX_ENA(pf_qidx));
1786 		if (!(reg & I40E_QTX_ENA_QENA_STAT_MASK))
1787 			break;
1788 		i40e_msec_delay(10);
1789 	}
1790 	if (reg & I40E_QTX_ENA_QENA_STAT_MASK) {
1791 		device_printf(pf->dev, "TX queue %d still enabled!\n",
1792 		    pf_qidx);
1793 		error = ETIMEDOUT;
1794 	}
1795 
1796 	return (error);
1797 }
1798 
1799 /*
1800  * Returns error on first ring that is detected hung.
1801  */
1802 int
1803 ixl_disable_rx_ring(struct ixl_pf *pf, struct ixl_pf_qtag *qtag, u16 vsi_qidx)
1804 {
1805 	struct i40e_hw	*hw = &pf->hw;
1806 	int		error = 0;
1807 	u32		reg;
1808 	u16		pf_qidx;
1809 
1810 	pf_qidx = ixl_pf_qidx_from_vsi_qidx(qtag, vsi_qidx);
1811 
1812 	ixl_dbg(pf, IXL_DBG_EN_DIS,
1813 	    "Disabling PF RX ring %4d / VSI RX ring %4d...\n",
1814 	    pf_qidx, vsi_qidx);
1815 
1816 	reg = rd32(hw, I40E_QRX_ENA(pf_qidx));
1817 	reg &= ~I40E_QRX_ENA_QENA_REQ_MASK;
1818 	wr32(hw, I40E_QRX_ENA(pf_qidx), reg);
1819 	/* Verify the disable took */
1820 	for (int j = 0; j < 10; j++) {
1821 		reg = rd32(hw, I40E_QRX_ENA(pf_qidx));
1822 		if (!(reg & I40E_QRX_ENA_QENA_STAT_MASK))
1823 			break;
1824 		i40e_msec_delay(10);
1825 	}
1826 	if (reg & I40E_QRX_ENA_QENA_STAT_MASK) {
1827 		device_printf(pf->dev, "RX queue %d still enabled!\n",
1828 		    pf_qidx);
1829 		error = ETIMEDOUT;
1830 	}
1831 
1832 	return (error);
1833 }
1834 
1835 int
1836 ixl_disable_ring(struct ixl_pf *pf, struct ixl_pf_qtag *qtag, u16 vsi_qidx)
1837 {
1838 	int error = 0;
1839 
1840 	error = ixl_disable_tx_ring(pf, qtag, vsi_qidx);
1841 	/* Called function already prints error message */
1842 	if (error)
1843 		return (error);
1844 	error = ixl_disable_rx_ring(pf, qtag, vsi_qidx);
1845 	return (error);
1846 }
1847 
1848 static void
1849 ixl_handle_tx_mdd_event(struct ixl_pf *pf)
1850 {
1851 	struct i40e_hw *hw = &pf->hw;
1852 	device_t dev = pf->dev;
1853 	struct ixl_vf *vf;
1854 	bool mdd_detected = false;
1855 	bool pf_mdd_detected = false;
1856 	bool vf_mdd_detected = false;
1857 	u16 vf_num, queue;
1858 	u8 pf_num, event;
1859 	u8 pf_mdet_num, vp_mdet_num;
1860 	u32 reg;
1861 
1862 	/* find what triggered the MDD event */
1863 	reg = rd32(hw, I40E_GL_MDET_TX);
1864 	if (reg & I40E_GL_MDET_TX_VALID_MASK) {
1865 		pf_num = (reg & I40E_GL_MDET_TX_PF_NUM_MASK) >>
1866 		    I40E_GL_MDET_TX_PF_NUM_SHIFT;
1867 		vf_num = (reg & I40E_GL_MDET_TX_VF_NUM_MASK) >>
1868 		    I40E_GL_MDET_TX_VF_NUM_SHIFT;
1869 		event = (reg & I40E_GL_MDET_TX_EVENT_MASK) >>
1870 		    I40E_GL_MDET_TX_EVENT_SHIFT;
1871 		queue = (reg & I40E_GL_MDET_TX_QUEUE_MASK) >>
1872 		    I40E_GL_MDET_TX_QUEUE_SHIFT;
1873 		wr32(hw, I40E_GL_MDET_TX, 0xffffffff);
1874 		mdd_detected = true;
1875 	}
1876 
1877 	if (!mdd_detected)
1878 		return;
1879 
1880 	reg = rd32(hw, I40E_PF_MDET_TX);
1881 	if (reg & I40E_PF_MDET_TX_VALID_MASK) {
1882 		wr32(hw, I40E_PF_MDET_TX, 0xFFFF);
1883 		pf_mdet_num = hw->pf_id;
1884 		pf_mdd_detected = true;
1885 	}
1886 
1887 	/* Check if MDD was caused by a VF */
1888 	for (int i = 0; i < pf->num_vfs; i++) {
1889 		vf = &(pf->vfs[i]);
1890 		reg = rd32(hw, I40E_VP_MDET_TX(i));
1891 		if (reg & I40E_VP_MDET_TX_VALID_MASK) {
1892 			wr32(hw, I40E_VP_MDET_TX(i), 0xFFFF);
1893 			vp_mdet_num = i;
1894 			vf->num_mdd_events++;
1895 			vf_mdd_detected = true;
1896 		}
1897 	}
1898 
1899 	/* Print out an error message */
1900 	if (vf_mdd_detected && pf_mdd_detected)
1901 		device_printf(dev,
1902 		    "Malicious Driver Detection event %d"
1903 		    " on TX queue %d, pf number %d (PF-%d), vf number %d (VF-%d)\n",
1904 		    event, queue, pf_num, pf_mdet_num, vf_num, vp_mdet_num);
1905 	else if (vf_mdd_detected && !pf_mdd_detected)
1906 		device_printf(dev,
1907 		    "Malicious Driver Detection event %d"
1908 		    " on TX queue %d, pf number %d, vf number %d (VF-%d)\n",
1909 		    event, queue, pf_num, vf_num, vp_mdet_num);
1910 	else if (!vf_mdd_detected && pf_mdd_detected)
1911 		device_printf(dev,
1912 		    "Malicious Driver Detection event %d"
1913 		    " on TX queue %d, pf number %d (PF-%d)\n",
1914 		    event, queue, pf_num, pf_mdet_num);
1915 	/* Theoretically shouldn't happen */
1916 	else
1917 		device_printf(dev,
1918 		    "TX Malicious Driver Detection event (unknown)\n");
1919 }
1920 
1921 static void
1922 ixl_handle_rx_mdd_event(struct ixl_pf *pf)
1923 {
1924 	struct i40e_hw *hw = &pf->hw;
1925 	device_t dev = pf->dev;
1926 	struct ixl_vf *vf;
1927 	bool mdd_detected = false;
1928 	bool pf_mdd_detected = false;
1929 	bool vf_mdd_detected = false;
1930 	u16 queue;
1931 	u8 pf_num, event;
1932 	u8 pf_mdet_num, vp_mdet_num;
1933 	u32 reg;
1934 
1935 	/*
1936 	 * GL_MDET_RX doesn't contain VF number information, unlike
1937 	 * GL_MDET_TX.
1938 	 */
1939 	reg = rd32(hw, I40E_GL_MDET_RX);
1940 	if (reg & I40E_GL_MDET_RX_VALID_MASK) {
1941 		pf_num = (reg & I40E_GL_MDET_RX_FUNCTION_MASK) >>
1942 		    I40E_GL_MDET_RX_FUNCTION_SHIFT;
1943 		event = (reg & I40E_GL_MDET_RX_EVENT_MASK) >>
1944 		    I40E_GL_MDET_RX_EVENT_SHIFT;
1945 		queue = (reg & I40E_GL_MDET_RX_QUEUE_MASK) >>
1946 		    I40E_GL_MDET_RX_QUEUE_SHIFT;
1947 		wr32(hw, I40E_GL_MDET_RX, 0xffffffff);
1948 		mdd_detected = true;
1949 	}
1950 
1951 	if (!mdd_detected)
1952 		return;
1953 
1954 	reg = rd32(hw, I40E_PF_MDET_RX);
1955 	if (reg & I40E_PF_MDET_RX_VALID_MASK) {
1956 		wr32(hw, I40E_PF_MDET_RX, 0xFFFF);
1957 		pf_mdet_num = hw->pf_id;
1958 		pf_mdd_detected = true;
1959 	}
1960 
1961 	/* Check if MDD was caused by a VF */
1962 	for (int i = 0; i < pf->num_vfs; i++) {
1963 		vf = &(pf->vfs[i]);
1964 		reg = rd32(hw, I40E_VP_MDET_RX(i));
1965 		if (reg & I40E_VP_MDET_RX_VALID_MASK) {
1966 			wr32(hw, I40E_VP_MDET_RX(i), 0xFFFF);
1967 			vp_mdet_num = i;
1968 			vf->num_mdd_events++;
1969 			vf_mdd_detected = true;
1970 		}
1971 	}
1972 
1973 	/* Print out an error message */
1974 	if (vf_mdd_detected && pf_mdd_detected)
1975 		device_printf(dev,
1976 		    "Malicious Driver Detection event %d"
1977 		    " on RX queue %d, pf number %d (PF-%d), (VF-%d)\n",
1978 		    event, queue, pf_num, pf_mdet_num, vp_mdet_num);
1979 	else if (vf_mdd_detected && !pf_mdd_detected)
1980 		device_printf(dev,
1981 		    "Malicious Driver Detection event %d"
1982 		    " on RX queue %d, pf number %d, (VF-%d)\n",
1983 		    event, queue, pf_num, vp_mdet_num);
1984 	else if (!vf_mdd_detected && pf_mdd_detected)
1985 		device_printf(dev,
1986 		    "Malicious Driver Detection event %d"
1987 		    " on RX queue %d, pf number %d (PF-%d)\n",
1988 		    event, queue, pf_num, pf_mdet_num);
1989 	/* Theoretically shouldn't happen */
1990 	else
1991 		device_printf(dev,
1992 		    "RX Malicious Driver Detection event (unknown)\n");
1993 }
1994 
1995 /**
1996  * ixl_handle_mdd_event
1997  *
1998  * Called from interrupt handler to identify possibly malicious vfs
1999  * (But also detects events from the PF, as well)
2000  **/
2001 void
2002 ixl_handle_mdd_event(struct ixl_pf *pf)
2003 {
2004 	struct i40e_hw *hw = &pf->hw;
2005 	u32 reg;
2006 
2007 	/*
2008 	 * Handle both TX/RX because it's possible they could
2009 	 * both trigger in the same interrupt.
2010 	 */
2011 	ixl_handle_tx_mdd_event(pf);
2012 	ixl_handle_rx_mdd_event(pf);
2013 
2014 	ixl_clear_state(&pf->state, IXL_STATE_MDD_PENDING);
2015 
2016 	/* re-enable mdd interrupt cause */
2017 	reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2018 	reg |= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK;
2019 	wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2020 	ixl_flush(hw);
2021 }
2022 
2023 void
2024 ixl_enable_intr0(struct i40e_hw *hw)
2025 {
2026 	u32		reg;
2027 
2028 	/* Use IXL_ITR_NONE so ITR isn't updated here */
2029 	reg = I40E_PFINT_DYN_CTL0_INTENA_MASK |
2030 	    I40E_PFINT_DYN_CTL0_CLEARPBA_MASK |
2031 	    (IXL_ITR_NONE << I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT);
2032 	wr32(hw, I40E_PFINT_DYN_CTL0, reg);
2033 }
2034 
2035 void
2036 ixl_disable_intr0(struct i40e_hw *hw)
2037 {
2038 	u32		reg;
2039 
2040 	reg = IXL_ITR_NONE << I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT;
2041 	wr32(hw, I40E_PFINT_DYN_CTL0, reg);
2042 	ixl_flush(hw);
2043 }
2044 
2045 void
2046 ixl_enable_queue(struct i40e_hw *hw, int id)
2047 {
2048 	u32		reg;
2049 
2050 	reg = I40E_PFINT_DYN_CTLN_INTENA_MASK |
2051 	    I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
2052 	    (IXL_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
2053 	wr32(hw, I40E_PFINT_DYN_CTLN(id), reg);
2054 }
2055 
2056 void
2057 ixl_disable_queue(struct i40e_hw *hw, int id)
2058 {
2059 	u32		reg;
2060 
2061 	reg = IXL_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT;
2062 	wr32(hw, I40E_PFINT_DYN_CTLN(id), reg);
2063 }
2064 
2065 void
2066 ixl_handle_empr_reset(struct ixl_pf *pf)
2067 {
2068 	struct ixl_vsi	*vsi = &pf->vsi;
2069 	bool is_up = !!(if_getdrvflags(vsi->ifp) & IFF_DRV_RUNNING);
2070 
2071 	ixl_prepare_for_reset(pf, is_up);
2072 	/*
2073 	 * i40e_pf_reset checks the type of reset and acts
2074 	 * accordingly. If EMP or Core reset was performed
2075 	 * doing PF reset is not necessary and it sometimes
2076 	 * fails.
2077 	 */
2078 	ixl_pf_reset(pf);
2079 
2080 	if (!IXL_PF_IN_RECOVERY_MODE(pf) &&
2081 	    ixl_get_fw_mode(pf) == IXL_FW_MODE_RECOVERY) {
2082 		ixl_set_state(&pf->state, IXL_STATE_RECOVERY_MODE);
2083 		device_printf(pf->dev,
2084 		    "Firmware recovery mode detected. Limiting functionality. Refer to Intel(R) Ethernet Adapters and Devices User Guide for details on firmware recovery mode.\n");
2085 		pf->link_up = FALSE;
2086 		ixl_update_link_status(pf);
2087 	}
2088 
2089 	ixl_rebuild_hw_structs_after_reset(pf, is_up);
2090 
2091 	ixl_clear_state(&pf->state, IXL_STATE_RESETTING);
2092 }
2093 
2094 void
2095 ixl_update_stats_counters(struct ixl_pf *pf)
2096 {
2097 	struct i40e_hw	*hw = &pf->hw;
2098 	struct ixl_vsi	*vsi = &pf->vsi;
2099 	struct ixl_vf	*vf;
2100 	u64 prev_link_xoff_rx = pf->stats.link_xoff_rx;
2101 
2102 	struct i40e_hw_port_stats *nsd = &pf->stats;
2103 	struct i40e_hw_port_stats *osd = &pf->stats_offsets;
2104 
2105 	/* Update hw stats */
2106 	ixl_stat_update32(hw, I40E_GLPRT_CRCERRS(hw->port),
2107 			   pf->stat_offsets_loaded,
2108 			   &osd->crc_errors, &nsd->crc_errors);
2109 	ixl_stat_update32(hw, I40E_GLPRT_ILLERRC(hw->port),
2110 			   pf->stat_offsets_loaded,
2111 			   &osd->illegal_bytes, &nsd->illegal_bytes);
2112 	ixl_stat_update48(hw, I40E_GLPRT_GORCH(hw->port),
2113 			   I40E_GLPRT_GORCL(hw->port),
2114 			   pf->stat_offsets_loaded,
2115 			   &osd->eth.rx_bytes, &nsd->eth.rx_bytes);
2116 	ixl_stat_update48(hw, I40E_GLPRT_GOTCH(hw->port),
2117 			   I40E_GLPRT_GOTCL(hw->port),
2118 			   pf->stat_offsets_loaded,
2119 			   &osd->eth.tx_bytes, &nsd->eth.tx_bytes);
2120 	ixl_stat_update32(hw, I40E_GLPRT_RDPC(hw->port),
2121 			   pf->stat_offsets_loaded,
2122 			   &osd->eth.rx_discards,
2123 			   &nsd->eth.rx_discards);
2124 	ixl_stat_update48(hw, I40E_GLPRT_UPRCH(hw->port),
2125 			   I40E_GLPRT_UPRCL(hw->port),
2126 			   pf->stat_offsets_loaded,
2127 			   &osd->eth.rx_unicast,
2128 			   &nsd->eth.rx_unicast);
2129 	ixl_stat_update48(hw, I40E_GLPRT_UPTCH(hw->port),
2130 			   I40E_GLPRT_UPTCL(hw->port),
2131 			   pf->stat_offsets_loaded,
2132 			   &osd->eth.tx_unicast,
2133 			   &nsd->eth.tx_unicast);
2134 	ixl_stat_update48(hw, I40E_GLPRT_MPRCH(hw->port),
2135 			   I40E_GLPRT_MPRCL(hw->port),
2136 			   pf->stat_offsets_loaded,
2137 			   &osd->eth.rx_multicast,
2138 			   &nsd->eth.rx_multicast);
2139 	ixl_stat_update48(hw, I40E_GLPRT_MPTCH(hw->port),
2140 			   I40E_GLPRT_MPTCL(hw->port),
2141 			   pf->stat_offsets_loaded,
2142 			   &osd->eth.tx_multicast,
2143 			   &nsd->eth.tx_multicast);
2144 	ixl_stat_update48(hw, I40E_GLPRT_BPRCH(hw->port),
2145 			   I40E_GLPRT_BPRCL(hw->port),
2146 			   pf->stat_offsets_loaded,
2147 			   &osd->eth.rx_broadcast,
2148 			   &nsd->eth.rx_broadcast);
2149 	ixl_stat_update48(hw, I40E_GLPRT_BPTCH(hw->port),
2150 			   I40E_GLPRT_BPTCL(hw->port),
2151 			   pf->stat_offsets_loaded,
2152 			   &osd->eth.tx_broadcast,
2153 			   &nsd->eth.tx_broadcast);
2154 
2155 	ixl_stat_update32(hw, I40E_GLPRT_TDOLD(hw->port),
2156 			   pf->stat_offsets_loaded,
2157 			   &osd->tx_dropped_link_down,
2158 			   &nsd->tx_dropped_link_down);
2159 	ixl_stat_update32(hw, I40E_GLPRT_MLFC(hw->port),
2160 			   pf->stat_offsets_loaded,
2161 			   &osd->mac_local_faults,
2162 			   &nsd->mac_local_faults);
2163 	ixl_stat_update32(hw, I40E_GLPRT_MRFC(hw->port),
2164 			   pf->stat_offsets_loaded,
2165 			   &osd->mac_remote_faults,
2166 			   &nsd->mac_remote_faults);
2167 	ixl_stat_update32(hw, I40E_GLPRT_RLEC(hw->port),
2168 			   pf->stat_offsets_loaded,
2169 			   &osd->rx_length_errors,
2170 			   &nsd->rx_length_errors);
2171 
2172 	/* Flow control (LFC) stats */
2173 	ixl_stat_update32(hw, I40E_GLPRT_LXONRXC(hw->port),
2174 			   pf->stat_offsets_loaded,
2175 			   &osd->link_xon_rx, &nsd->link_xon_rx);
2176 	ixl_stat_update32(hw, I40E_GLPRT_LXONTXC(hw->port),
2177 			   pf->stat_offsets_loaded,
2178 			   &osd->link_xon_tx, &nsd->link_xon_tx);
2179 	ixl_stat_update32(hw, I40E_GLPRT_LXOFFRXC(hw->port),
2180 			   pf->stat_offsets_loaded,
2181 			   &osd->link_xoff_rx, &nsd->link_xoff_rx);
2182 	ixl_stat_update32(hw, I40E_GLPRT_LXOFFTXC(hw->port),
2183 			   pf->stat_offsets_loaded,
2184 			   &osd->link_xoff_tx, &nsd->link_xoff_tx);
2185 
2186 	/*
2187 	 * For watchdog management we need to know if we have been paused
2188 	 * during the last interval, so capture that here.
2189 	 */
2190 	if (pf->stats.link_xoff_rx != prev_link_xoff_rx)
2191 		vsi->shared->isc_pause_frames = 1;
2192 
2193 	/* Packet size stats rx */
2194 	ixl_stat_update48(hw, I40E_GLPRT_PRC64H(hw->port),
2195 			   I40E_GLPRT_PRC64L(hw->port),
2196 			   pf->stat_offsets_loaded,
2197 			   &osd->rx_size_64, &nsd->rx_size_64);
2198 	ixl_stat_update48(hw, I40E_GLPRT_PRC127H(hw->port),
2199 			   I40E_GLPRT_PRC127L(hw->port),
2200 			   pf->stat_offsets_loaded,
2201 			   &osd->rx_size_127, &nsd->rx_size_127);
2202 	ixl_stat_update48(hw, I40E_GLPRT_PRC255H(hw->port),
2203 			   I40E_GLPRT_PRC255L(hw->port),
2204 			   pf->stat_offsets_loaded,
2205 			   &osd->rx_size_255, &nsd->rx_size_255);
2206 	ixl_stat_update48(hw, I40E_GLPRT_PRC511H(hw->port),
2207 			   I40E_GLPRT_PRC511L(hw->port),
2208 			   pf->stat_offsets_loaded,
2209 			   &osd->rx_size_511, &nsd->rx_size_511);
2210 	ixl_stat_update48(hw, I40E_GLPRT_PRC1023H(hw->port),
2211 			   I40E_GLPRT_PRC1023L(hw->port),
2212 			   pf->stat_offsets_loaded,
2213 			   &osd->rx_size_1023, &nsd->rx_size_1023);
2214 	ixl_stat_update48(hw, I40E_GLPRT_PRC1522H(hw->port),
2215 			   I40E_GLPRT_PRC1522L(hw->port),
2216 			   pf->stat_offsets_loaded,
2217 			   &osd->rx_size_1522, &nsd->rx_size_1522);
2218 	ixl_stat_update48(hw, I40E_GLPRT_PRC9522H(hw->port),
2219 			   I40E_GLPRT_PRC9522L(hw->port),
2220 			   pf->stat_offsets_loaded,
2221 			   &osd->rx_size_big, &nsd->rx_size_big);
2222 
2223 	/* Packet size stats tx */
2224 	ixl_stat_update48(hw, I40E_GLPRT_PTC64H(hw->port),
2225 			   I40E_GLPRT_PTC64L(hw->port),
2226 			   pf->stat_offsets_loaded,
2227 			   &osd->tx_size_64, &nsd->tx_size_64);
2228 	ixl_stat_update48(hw, I40E_GLPRT_PTC127H(hw->port),
2229 			   I40E_GLPRT_PTC127L(hw->port),
2230 			   pf->stat_offsets_loaded,
2231 			   &osd->tx_size_127, &nsd->tx_size_127);
2232 	ixl_stat_update48(hw, I40E_GLPRT_PTC255H(hw->port),
2233 			   I40E_GLPRT_PTC255L(hw->port),
2234 			   pf->stat_offsets_loaded,
2235 			   &osd->tx_size_255, &nsd->tx_size_255);
2236 	ixl_stat_update48(hw, I40E_GLPRT_PTC511H(hw->port),
2237 			   I40E_GLPRT_PTC511L(hw->port),
2238 			   pf->stat_offsets_loaded,
2239 			   &osd->tx_size_511, &nsd->tx_size_511);
2240 	ixl_stat_update48(hw, I40E_GLPRT_PTC1023H(hw->port),
2241 			   I40E_GLPRT_PTC1023L(hw->port),
2242 			   pf->stat_offsets_loaded,
2243 			   &osd->tx_size_1023, &nsd->tx_size_1023);
2244 	ixl_stat_update48(hw, I40E_GLPRT_PTC1522H(hw->port),
2245 			   I40E_GLPRT_PTC1522L(hw->port),
2246 			   pf->stat_offsets_loaded,
2247 			   &osd->tx_size_1522, &nsd->tx_size_1522);
2248 	ixl_stat_update48(hw, I40E_GLPRT_PTC9522H(hw->port),
2249 			   I40E_GLPRT_PTC9522L(hw->port),
2250 			   pf->stat_offsets_loaded,
2251 			   &osd->tx_size_big, &nsd->tx_size_big);
2252 
2253 	ixl_stat_update32(hw, I40E_GLPRT_RUC(hw->port),
2254 			   pf->stat_offsets_loaded,
2255 			   &osd->rx_undersize, &nsd->rx_undersize);
2256 	ixl_stat_update32(hw, I40E_GLPRT_RFC(hw->port),
2257 			   pf->stat_offsets_loaded,
2258 			   &osd->rx_fragments, &nsd->rx_fragments);
2259 	ixl_stat_update32(hw, I40E_GLPRT_ROC(hw->port),
2260 			   pf->stat_offsets_loaded,
2261 			   &osd->rx_oversize, &nsd->rx_oversize);
2262 	ixl_stat_update32(hw, I40E_GLPRT_RJC(hw->port),
2263 			   pf->stat_offsets_loaded,
2264 			   &osd->rx_jabber, &nsd->rx_jabber);
2265 	/* EEE */
2266 	i40e_get_phy_lpi_status(hw, nsd);
2267 
2268 	i40e_lpi_stat_update(hw, pf->stat_offsets_loaded,
2269 			  &osd->tx_lpi_count, &nsd->tx_lpi_count,
2270 			  &osd->rx_lpi_count, &nsd->rx_lpi_count);
2271 
2272 	pf->stat_offsets_loaded = true;
2273 	/* End hw stats */
2274 
2275 	/* Update vsi stats */
2276 	ixl_update_vsi_stats(vsi);
2277 
2278 	for (int i = 0; i < pf->num_vfs; i++) {
2279 		vf = &pf->vfs[i];
2280 		if (vf->vf_flags & VF_FLAG_ENABLED)
2281 			ixl_update_eth_stats(&pf->vfs[i].vsi);
2282 	}
2283 }
2284 
2285 /**
2286  * Update VSI-specific ethernet statistics counters.
2287  **/
2288 void
2289 ixl_update_eth_stats(struct ixl_vsi *vsi)
2290 {
2291 	struct ixl_pf *pf = (struct ixl_pf *)vsi->back;
2292 	struct i40e_hw *hw = &pf->hw;
2293 	struct i40e_eth_stats *es;
2294 	struct i40e_eth_stats *oes;
2295 	u16 stat_idx = vsi->info.stat_counter_idx;
2296 
2297 	es = &vsi->eth_stats;
2298 	oes = &vsi->eth_stats_offsets;
2299 
2300 	/* Gather up the stats that the hw collects */
2301 	ixl_stat_update32(hw, I40E_GLV_TEPC(stat_idx),
2302 			   vsi->stat_offsets_loaded,
2303 			   &oes->tx_errors, &es->tx_errors);
2304 	ixl_stat_update32(hw, I40E_GLV_RDPC(stat_idx),
2305 			   vsi->stat_offsets_loaded,
2306 			   &oes->rx_discards, &es->rx_discards);
2307 
2308 	ixl_stat_update48(hw, I40E_GLV_GORCH(stat_idx),
2309 			   I40E_GLV_GORCL(stat_idx),
2310 			   vsi->stat_offsets_loaded,
2311 			   &oes->rx_bytes, &es->rx_bytes);
2312 	ixl_stat_update48(hw, I40E_GLV_UPRCH(stat_idx),
2313 			   I40E_GLV_UPRCL(stat_idx),
2314 			   vsi->stat_offsets_loaded,
2315 			   &oes->rx_unicast, &es->rx_unicast);
2316 	ixl_stat_update48(hw, I40E_GLV_MPRCH(stat_idx),
2317 			   I40E_GLV_MPRCL(stat_idx),
2318 			   vsi->stat_offsets_loaded,
2319 			   &oes->rx_multicast, &es->rx_multicast);
2320 	ixl_stat_update48(hw, I40E_GLV_BPRCH(stat_idx),
2321 			   I40E_GLV_BPRCL(stat_idx),
2322 			   vsi->stat_offsets_loaded,
2323 			   &oes->rx_broadcast, &es->rx_broadcast);
2324 
2325 	ixl_stat_update48(hw, I40E_GLV_GOTCH(stat_idx),
2326 			   I40E_GLV_GOTCL(stat_idx),
2327 			   vsi->stat_offsets_loaded,
2328 			   &oes->tx_bytes, &es->tx_bytes);
2329 	ixl_stat_update48(hw, I40E_GLV_UPTCH(stat_idx),
2330 			   I40E_GLV_UPTCL(stat_idx),
2331 			   vsi->stat_offsets_loaded,
2332 			   &oes->tx_unicast, &es->tx_unicast);
2333 	ixl_stat_update48(hw, I40E_GLV_MPTCH(stat_idx),
2334 			   I40E_GLV_MPTCL(stat_idx),
2335 			   vsi->stat_offsets_loaded,
2336 			   &oes->tx_multicast, &es->tx_multicast);
2337 	ixl_stat_update48(hw, I40E_GLV_BPTCH(stat_idx),
2338 			   I40E_GLV_BPTCL(stat_idx),
2339 			   vsi->stat_offsets_loaded,
2340 			   &oes->tx_broadcast, &es->tx_broadcast);
2341 	vsi->stat_offsets_loaded = true;
2342 }
2343 
2344 void
2345 ixl_update_vsi_stats(struct ixl_vsi *vsi)
2346 {
2347 	struct ixl_pf		*pf;
2348 	struct i40e_eth_stats	*es;
2349 	u64			tx_discards, csum_errs;
2350 
2351 	struct i40e_hw_port_stats *nsd;
2352 
2353 	pf = vsi->back;
2354 	es = &vsi->eth_stats;
2355 	nsd = &pf->stats;
2356 
2357 	ixl_update_eth_stats(vsi);
2358 
2359 	tx_discards = es->tx_discards + nsd->tx_dropped_link_down;
2360 
2361 	csum_errs = 0;
2362 	for (int i = 0; i < vsi->num_rx_queues; i++)
2363 		csum_errs += vsi->rx_queues[i].rxr.csum_errs;
2364 	nsd->checksum_error = csum_errs;
2365 
2366 	/* Update ifnet stats */
2367 	IXL_SET_IPACKETS(vsi, es->rx_unicast +
2368 	                   es->rx_multicast +
2369 			   es->rx_broadcast);
2370 	IXL_SET_OPACKETS(vsi, es->tx_unicast +
2371 	                   es->tx_multicast +
2372 			   es->tx_broadcast);
2373 	IXL_SET_IBYTES(vsi, es->rx_bytes);
2374 	IXL_SET_OBYTES(vsi, es->tx_bytes);
2375 	IXL_SET_IMCASTS(vsi, es->rx_multicast);
2376 	IXL_SET_OMCASTS(vsi, es->tx_multicast);
2377 
2378 	IXL_SET_IERRORS(vsi, nsd->crc_errors + nsd->illegal_bytes +
2379 	    nsd->checksum_error + nsd->rx_length_errors +
2380 	    nsd->rx_undersize + nsd->rx_fragments + nsd->rx_oversize +
2381 	    nsd->rx_jabber);
2382 	IXL_SET_OERRORS(vsi, es->tx_errors);
2383 	IXL_SET_IQDROPS(vsi, es->rx_discards + nsd->eth.rx_discards);
2384 	IXL_SET_OQDROPS(vsi, tx_discards);
2385 	IXL_SET_NOPROTO(vsi, es->rx_unknown_protocol);
2386 	IXL_SET_COLLISIONS(vsi, 0);
2387 }
2388 
2389 /**
2390  * Reset all of the stats for the given pf
2391  **/
2392 void
2393 ixl_pf_reset_stats(struct ixl_pf *pf)
2394 {
2395 	bzero(&pf->stats, sizeof(struct i40e_hw_port_stats));
2396 	bzero(&pf->stats_offsets, sizeof(struct i40e_hw_port_stats));
2397 	pf->stat_offsets_loaded = false;
2398 }
2399 
2400 /**
2401  * Resets all stats of the given vsi
2402  **/
2403 void
2404 ixl_vsi_reset_stats(struct ixl_vsi *vsi)
2405 {
2406 	bzero(&vsi->eth_stats, sizeof(struct i40e_eth_stats));
2407 	bzero(&vsi->eth_stats_offsets, sizeof(struct i40e_eth_stats));
2408 	vsi->stat_offsets_loaded = false;
2409 }
2410 
2411 /**
2412  * Read and update a 48 bit stat from the hw
2413  *
2414  * Since the device stats are not reset at PFReset, they likely will not
2415  * be zeroed when the driver starts.  We'll save the first values read
2416  * and use them as offsets to be subtracted from the raw values in order
2417  * to report stats that count from zero.
2418  **/
2419 void
2420 ixl_stat_update48(struct i40e_hw *hw, u32 hireg, u32 loreg,
2421 	bool offset_loaded, u64 *offset, u64 *stat)
2422 {
2423 	u64 new_data;
2424 
2425 	new_data = rd64(hw, loreg);
2426 
2427 	if (!offset_loaded)
2428 		*offset = new_data;
2429 	if (new_data >= *offset)
2430 		*stat = new_data - *offset;
2431 	else
2432 		*stat = (new_data + ((u64)1 << 48)) - *offset;
2433 	*stat &= 0xFFFFFFFFFFFFULL;
2434 }
2435 
2436 /**
2437  * Read and update a 32 bit stat from the hw
2438  **/
2439 void
2440 ixl_stat_update32(struct i40e_hw *hw, u32 reg,
2441 	bool offset_loaded, u64 *offset, u64 *stat)
2442 {
2443 	u32 new_data;
2444 
2445 	new_data = rd32(hw, reg);
2446 	if (!offset_loaded)
2447 		*offset = new_data;
2448 	if (new_data >= *offset)
2449 		*stat = (u32)(new_data - *offset);
2450 	else
2451 		*stat = (u32)((new_data + ((u64)1 << 32)) - *offset);
2452 }
2453 
2454 /**
2455  * Add subset of device sysctls safe to use in recovery mode
2456  */
2457 void
2458 ixl_add_sysctls_recovery_mode(struct ixl_pf *pf)
2459 {
2460 	device_t dev = pf->dev;
2461 
2462 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
2463 	struct sysctl_oid_list *ctx_list =
2464 	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev));
2465 
2466 	struct sysctl_oid *debug_node;
2467 	struct sysctl_oid_list *debug_list;
2468 
2469 	SYSCTL_ADD_PROC(ctx, ctx_list,
2470 	    OID_AUTO, "fw_version",
2471 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, pf, 0,
2472 	    ixl_sysctl_show_fw, "A", "Firmware version");
2473 
2474 	/* Add sysctls meant to print debug information, but don't list them
2475 	 * in "sysctl -a" output. */
2476 	debug_node = SYSCTL_ADD_NODE(ctx, ctx_list,
2477 	    OID_AUTO, "debug", CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL,
2478 	    "Debug Sysctls");
2479 	debug_list = SYSCTL_CHILDREN(debug_node);
2480 
2481 	SYSCTL_ADD_UINT(ctx, debug_list,
2482 	    OID_AUTO, "shared_debug_mask", CTLFLAG_RW,
2483 	    &pf->hw.debug_mask, 0, "Shared code debug message level");
2484 
2485 	SYSCTL_ADD_UINT(ctx, debug_list,
2486 	    OID_AUTO, "core_debug_mask", CTLFLAG_RW,
2487 	    &pf->dbg_mask, 0, "Non-shared code debug message level");
2488 
2489 	SYSCTL_ADD_PROC(ctx, debug_list,
2490 	    OID_AUTO, "dump_debug_data",
2491 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2492 	    pf, 0, ixl_sysctl_dump_debug_data, "A", "Dump Debug Data from FW");
2493 
2494 	SYSCTL_ADD_PROC(ctx, debug_list,
2495 	    OID_AUTO, "do_pf_reset",
2496 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2497 	    pf, 0, ixl_sysctl_do_pf_reset, "I", "Tell HW to initiate a PF reset");
2498 
2499 	SYSCTL_ADD_PROC(ctx, debug_list,
2500 	    OID_AUTO, "do_core_reset",
2501 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2502 	    pf, 0, ixl_sysctl_do_core_reset, "I", "Tell HW to initiate a CORE reset");
2503 
2504 	SYSCTL_ADD_PROC(ctx, debug_list,
2505 	    OID_AUTO, "do_global_reset",
2506 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2507 	    pf, 0, ixl_sysctl_do_global_reset, "I", "Tell HW to initiate a GLOBAL reset");
2508 
2509 	SYSCTL_ADD_PROC(ctx, debug_list,
2510 	    OID_AUTO, "queue_interrupt_table",
2511 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2512 	    pf, 0, ixl_sysctl_queue_interrupt_table, "A", "View MSI-X indices for TX/RX queues");
2513 }
2514 
2515 void
2516 ixl_add_device_sysctls(struct ixl_pf *pf)
2517 {
2518 	device_t dev = pf->dev;
2519 	struct i40e_hw *hw = &pf->hw;
2520 
2521 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
2522 	struct sysctl_oid_list *ctx_list =
2523 	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev));
2524 
2525 	struct sysctl_oid *debug_node;
2526 	struct sysctl_oid_list *debug_list;
2527 
2528 	struct sysctl_oid *fec_node;
2529 	struct sysctl_oid_list *fec_list;
2530 	struct sysctl_oid *eee_node;
2531 	struct sysctl_oid_list *eee_list;
2532 
2533 	/* Set up sysctls */
2534 	SYSCTL_ADD_PROC(ctx, ctx_list,
2535 	    OID_AUTO, "fc", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
2536 	    pf, 0, ixl_sysctl_set_flowcntl, "I", IXL_SYSCTL_HELP_FC);
2537 
2538 	SYSCTL_ADD_PROC(ctx, ctx_list,
2539 	    OID_AUTO, "advertise_speed",
2540 	    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2541 	    ixl_sysctl_set_advertise, "I", IXL_SYSCTL_HELP_SET_ADVERTISE);
2542 
2543 	SYSCTL_ADD_PROC(ctx, ctx_list,
2544 	    OID_AUTO, "supported_speeds",
2545 	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, pf, 0,
2546 	    ixl_sysctl_supported_speeds, "I", IXL_SYSCTL_HELP_SUPPORTED_SPEED);
2547 
2548 	SYSCTL_ADD_PROC(ctx, ctx_list,
2549 	    OID_AUTO, "current_speed",
2550 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, pf, 0,
2551 	    ixl_sysctl_current_speed, "A", "Current Port Speed");
2552 
2553 	SYSCTL_ADD_PROC(ctx, ctx_list,
2554 	    OID_AUTO, "fw_version",
2555 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, pf, 0,
2556 	    ixl_sysctl_show_fw, "A", "Firmware version");
2557 
2558 	SYSCTL_ADD_PROC(ctx, ctx_list,
2559 	    OID_AUTO, "unallocated_queues",
2560 	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, pf, 0,
2561 	    ixl_sysctl_unallocated_queues, "I",
2562 	    "Queues not allocated to a PF or VF");
2563 
2564 	SYSCTL_ADD_PROC(ctx, ctx_list,
2565 	    OID_AUTO, "tx_itr",
2566 	    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2567 	    ixl_sysctl_pf_tx_itr, "I",
2568 	    "Immediately set TX ITR value for all queues");
2569 
2570 	SYSCTL_ADD_PROC(ctx, ctx_list,
2571 	    OID_AUTO, "rx_itr",
2572 	    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2573 	    ixl_sysctl_pf_rx_itr, "I",
2574 	    "Immediately set RX ITR value for all queues");
2575 
2576 	SYSCTL_ADD_INT(ctx, ctx_list,
2577 	    OID_AUTO, "dynamic_rx_itr", CTLFLAG_RW,
2578 	    &pf->dynamic_rx_itr, 0, "Enable dynamic RX ITR");
2579 
2580 	SYSCTL_ADD_INT(ctx, ctx_list,
2581 	    OID_AUTO, "dynamic_tx_itr", CTLFLAG_RW,
2582 	    &pf->dynamic_tx_itr, 0, "Enable dynamic TX ITR");
2583 
2584 	/* Add FEC sysctls for 25G adapters */
2585 	if (i40e_is_25G_device(hw->device_id)) {
2586 		fec_node = SYSCTL_ADD_NODE(ctx, ctx_list,
2587 		    OID_AUTO, "fec", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
2588 		    "FEC Sysctls");
2589 		fec_list = SYSCTL_CHILDREN(fec_node);
2590 
2591 		SYSCTL_ADD_PROC(ctx, fec_list,
2592 		    OID_AUTO, "fc_ability",
2593 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2594 		    ixl_sysctl_fec_fc_ability, "I", "FC FEC ability enabled");
2595 
2596 		SYSCTL_ADD_PROC(ctx, fec_list,
2597 		    OID_AUTO, "rs_ability",
2598 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2599 		    ixl_sysctl_fec_rs_ability, "I", "RS FEC ability enabled");
2600 
2601 		SYSCTL_ADD_PROC(ctx, fec_list,
2602 		    OID_AUTO, "fc_requested",
2603 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2604 		    ixl_sysctl_fec_fc_request, "I",
2605 		    "FC FEC mode requested on link");
2606 
2607 		SYSCTL_ADD_PROC(ctx, fec_list,
2608 		    OID_AUTO, "rs_requested",
2609 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2610 		    ixl_sysctl_fec_rs_request, "I",
2611 		    "RS FEC mode requested on link");
2612 
2613 		SYSCTL_ADD_PROC(ctx, fec_list,
2614 		    OID_AUTO, "auto_fec_enabled",
2615 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, pf, 0,
2616 		    ixl_sysctl_fec_auto_enable, "I",
2617 		    "Let FW decide FEC ability/request modes");
2618 	}
2619 
2620 	SYSCTL_ADD_PROC(ctx, ctx_list,
2621 	    OID_AUTO, "fw_lldp", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
2622 	    pf, 0, ixl_sysctl_fw_lldp, "I", IXL_SYSCTL_HELP_FW_LLDP);
2623 
2624 	eee_node = SYSCTL_ADD_NODE(ctx, ctx_list,
2625 	    OID_AUTO, "eee", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
2626 	    "Energy Efficient Ethernet (EEE) Sysctls");
2627 	eee_list = SYSCTL_CHILDREN(eee_node);
2628 
2629 	SYSCTL_ADD_PROC(ctx, eee_list,
2630 	    OID_AUTO, "enable", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
2631 	    pf, 0, ixl_sysctl_eee_enable, "I",
2632 	    "Enable Energy Efficient Ethernet (EEE)");
2633 
2634 	SYSCTL_ADD_UINT(ctx, eee_list, OID_AUTO, "tx_lpi_status",
2635 	    CTLFLAG_RD | CTLFLAG_MPSAFE, &pf->stats.tx_lpi_status, 0,
2636 	    "TX LPI status");
2637 
2638 	SYSCTL_ADD_UINT(ctx, eee_list, OID_AUTO, "rx_lpi_status",
2639 	    CTLFLAG_RD | CTLFLAG_MPSAFE, &pf->stats.rx_lpi_status, 0,
2640 	    "RX LPI status");
2641 
2642 	SYSCTL_ADD_UQUAD(ctx, eee_list, OID_AUTO, "tx_lpi_count",
2643 	    CTLFLAG_RD | CTLFLAG_MPSAFE, &pf->stats.tx_lpi_count,
2644 	    "TX LPI count");
2645 
2646 	SYSCTL_ADD_UQUAD(ctx, eee_list, OID_AUTO, "rx_lpi_count",
2647 	    CTLFLAG_RD | CTLFLAG_MPSAFE, &pf->stats.rx_lpi_count,
2648 	    "RX LPI count");
2649 
2650 	SYSCTL_ADD_PROC(ctx, ctx_list, OID_AUTO,
2651 	    "link_active_on_if_down",
2652 	    CTLTYPE_INT | CTLFLAG_RWTUN,
2653 	    pf, 0, ixl_sysctl_set_link_active, "I",
2654 	    IXL_SYSCTL_HELP_SET_LINK_ACTIVE);
2655 
2656 	/* Add sysctls meant to print debug information, but don't list them
2657 	 * in "sysctl -a" output. */
2658 	debug_node = SYSCTL_ADD_NODE(ctx, ctx_list,
2659 	    OID_AUTO, "debug", CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL,
2660 	    "Debug Sysctls");
2661 	debug_list = SYSCTL_CHILDREN(debug_node);
2662 
2663 	SYSCTL_ADD_UINT(ctx, debug_list,
2664 	    OID_AUTO, "shared_debug_mask", CTLFLAG_RW,
2665 	    &pf->hw.debug_mask, 0, "Shared code debug message level");
2666 
2667 	SYSCTL_ADD_UINT(ctx, debug_list,
2668 	    OID_AUTO, "core_debug_mask", CTLFLAG_RW,
2669 	    &pf->dbg_mask, 0, "Non-shared code debug message level");
2670 
2671 	SYSCTL_ADD_PROC(ctx, debug_list,
2672 	    OID_AUTO, "link_status",
2673 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2674 	    pf, 0, ixl_sysctl_link_status, "A", IXL_SYSCTL_HELP_LINK_STATUS);
2675 
2676 	SYSCTL_ADD_PROC(ctx, debug_list,
2677 	    OID_AUTO, "phy_abilities_init",
2678 	    CTLTYPE_STRING | CTLFLAG_RD,
2679 	    pf, 1, ixl_sysctl_phy_abilities, "A", "Initial PHY Abilities");
2680 
2681 	SYSCTL_ADD_PROC(ctx, debug_list,
2682 	    OID_AUTO, "phy_abilities",
2683 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2684 	    pf, 0, ixl_sysctl_phy_abilities, "A", "PHY Abilities");
2685 
2686 	SYSCTL_ADD_PROC(ctx, debug_list,
2687 	    OID_AUTO, "filter_list",
2688 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2689 	    pf, 0, ixl_sysctl_sw_filter_list, "A", "SW Filter List");
2690 
2691 	SYSCTL_ADD_PROC(ctx, debug_list,
2692 	    OID_AUTO, "hw_res_alloc",
2693 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2694 	    pf, 0, ixl_sysctl_hw_res_alloc, "A", "HW Resource Allocation");
2695 
2696 	SYSCTL_ADD_PROC(ctx, debug_list,
2697 	    OID_AUTO, "switch_config",
2698 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2699 	    pf, 0, ixl_sysctl_switch_config, "A", "HW Switch Configuration");
2700 
2701 	SYSCTL_ADD_PROC(ctx, debug_list,
2702 	    OID_AUTO, "switch_vlans",
2703 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2704 	    pf, 0, ixl_sysctl_switch_vlans, "I", "HW Switch VLAN Configuration");
2705 
2706 	SYSCTL_ADD_PROC(ctx, debug_list,
2707 	    OID_AUTO, "rss_key",
2708 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2709 	    pf, 0, ixl_sysctl_hkey, "A", "View RSS key");
2710 
2711 	SYSCTL_ADD_PROC(ctx, debug_list,
2712 	    OID_AUTO, "rss_lut",
2713 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2714 	    pf, 0, ixl_sysctl_hlut, "A", "View RSS lookup table");
2715 
2716 	SYSCTL_ADD_PROC(ctx, debug_list,
2717 	    OID_AUTO, "rss_hena",
2718 	    CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2719 	    pf, 0, ixl_sysctl_hena, "LU", "View enabled packet types for RSS");
2720 
2721 	SYSCTL_ADD_PROC(ctx, debug_list,
2722 	    OID_AUTO, "disable_fw_link_management",
2723 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2724 	    pf, 0, ixl_sysctl_fw_link_management, "I", "Disable FW Link Management");
2725 
2726 	SYSCTL_ADD_PROC(ctx, debug_list,
2727 	    OID_AUTO, "dump_debug_data",
2728 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2729 	    pf, 0, ixl_sysctl_dump_debug_data, "A", "Dump Debug Data from FW");
2730 
2731 	SYSCTL_ADD_PROC(ctx, debug_list,
2732 	    OID_AUTO, "do_pf_reset",
2733 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2734 	    pf, 0, ixl_sysctl_do_pf_reset, "I", "Tell HW to initiate a PF reset");
2735 
2736 	SYSCTL_ADD_PROC(ctx, debug_list,
2737 	    OID_AUTO, "do_core_reset",
2738 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2739 	    pf, 0, ixl_sysctl_do_core_reset, "I", "Tell HW to initiate a CORE reset");
2740 
2741 	SYSCTL_ADD_PROC(ctx, debug_list,
2742 	    OID_AUTO, "do_global_reset",
2743 	    CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_NEEDGIANT,
2744 	    pf, 0, ixl_sysctl_do_global_reset, "I", "Tell HW to initiate a GLOBAL reset");
2745 
2746 	SYSCTL_ADD_PROC(ctx, debug_list,
2747 	    OID_AUTO, "queue_interrupt_table",
2748 	    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2749 	    pf, 0, ixl_sysctl_queue_interrupt_table, "A", "View MSI-X indices for TX/RX queues");
2750 
2751 	SYSCTL_ADD_PROC(ctx, debug_list,
2752 	    OID_AUTO, "phy_statistics", CTLTYPE_STRING | CTLFLAG_RD,
2753 	    pf, 0, ixl_sysctl_phy_statistics, "A", "PHY Statistics");
2754 
2755 	if (pf->has_i2c) {
2756 		SYSCTL_ADD_PROC(ctx, debug_list,
2757 		    OID_AUTO, "read_i2c_byte",
2758 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
2759 		    pf, 0, ixl_sysctl_read_i2c_byte, "I", IXL_SYSCTL_HELP_READ_I2C);
2760 
2761 		SYSCTL_ADD_PROC(ctx, debug_list,
2762 		    OID_AUTO, "write_i2c_byte",
2763 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
2764 		    pf, 0, ixl_sysctl_write_i2c_byte, "I", IXL_SYSCTL_HELP_WRITE_I2C);
2765 
2766 		SYSCTL_ADD_PROC(ctx, debug_list,
2767 		    OID_AUTO, "read_i2c_diag_data",
2768 		    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
2769 		    pf, 0, ixl_sysctl_read_i2c_diag_data, "A", "Dump selected diagnostic data from FW");
2770 	}
2771 }
2772 
2773 /*
2774  * Primarily for finding out how many queues can be assigned to VFs,
2775  * at runtime.
2776  */
2777 static int
2778 ixl_sysctl_unallocated_queues(SYSCTL_HANDLER_ARGS)
2779 {
2780 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
2781 	int queues;
2782 
2783 	queues = (int)ixl_pf_qmgr_get_num_free(&pf->qmgr);
2784 
2785 	return sysctl_handle_int(oidp, NULL, queues, req);
2786 }
2787 
2788 static const char *
2789 ixl_link_speed_string(enum i40e_aq_link_speed link_speed)
2790 {
2791 	const char * link_speed_str[] = {
2792 		"Unknown",
2793 		"100 Mbps",
2794 		"1 Gbps",
2795 		"10 Gbps",
2796 		"40 Gbps",
2797 		"20 Gbps",
2798 		"25 Gbps",
2799 		"2.5 Gbps",
2800 		"5 Gbps"
2801 	};
2802 	int index;
2803 
2804 	switch (link_speed) {
2805 	case I40E_LINK_SPEED_100MB:
2806 		index = 1;
2807 		break;
2808 	case I40E_LINK_SPEED_1GB:
2809 		index = 2;
2810 		break;
2811 	case I40E_LINK_SPEED_10GB:
2812 		index = 3;
2813 		break;
2814 	case I40E_LINK_SPEED_40GB:
2815 		index = 4;
2816 		break;
2817 	case I40E_LINK_SPEED_20GB:
2818 		index = 5;
2819 		break;
2820 	case I40E_LINK_SPEED_25GB:
2821 		index = 6;
2822 		break;
2823 	case I40E_LINK_SPEED_2_5GB:
2824 		index = 7;
2825 		break;
2826 	case I40E_LINK_SPEED_5GB:
2827 		index = 8;
2828 		break;
2829 	case I40E_LINK_SPEED_UNKNOWN:
2830 	default:
2831 		index = 0;
2832 		break;
2833 	}
2834 
2835 	return (link_speed_str[index]);
2836 }
2837 
2838 int
2839 ixl_sysctl_current_speed(SYSCTL_HANDLER_ARGS)
2840 {
2841 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
2842 	struct i40e_hw *hw = &pf->hw;
2843 	int error = 0;
2844 
2845 	ixl_update_link_status(pf);
2846 
2847 	error = sysctl_handle_string(oidp,
2848 	    __DECONST(void *,
2849 		ixl_link_speed_string(hw->phy.link_info.link_speed)),
2850 	    8, req);
2851 
2852 	return (error);
2853 }
2854 
2855 /*
2856  * Converts 8-bit speeds value to and from sysctl flags and
2857  * Admin Queue flags.
2858  */
2859 static u8
2860 ixl_convert_sysctl_aq_link_speed(u8 speeds, bool to_aq)
2861 {
2862 #define SPEED_MAP_SIZE 8
2863 	static u16 speedmap[SPEED_MAP_SIZE] = {
2864 		(I40E_LINK_SPEED_100MB | (0x1 << 8)),
2865 		(I40E_LINK_SPEED_1GB   | (0x2 << 8)),
2866 		(I40E_LINK_SPEED_10GB  | (0x4 << 8)),
2867 		(I40E_LINK_SPEED_20GB  | (0x8 << 8)),
2868 		(I40E_LINK_SPEED_25GB  | (0x10 << 8)),
2869 		(I40E_LINK_SPEED_40GB  | (0x20 << 8)),
2870 		(I40E_LINK_SPEED_2_5GB | (0x40 << 8)),
2871 		(I40E_LINK_SPEED_5GB   | (0x80 << 8)),
2872 	};
2873 	u8 retval = 0;
2874 
2875 	for (int i = 0; i < SPEED_MAP_SIZE; i++) {
2876 		if (to_aq)
2877 			retval |= (speeds & (speedmap[i] >> 8)) ? (speedmap[i] & 0xff) : 0;
2878 		else
2879 			retval |= (speeds & speedmap[i]) ? (speedmap[i] >> 8) : 0;
2880 	}
2881 
2882 	return (retval);
2883 }
2884 
2885 int
2886 ixl_set_advertised_speeds(struct ixl_pf *pf, int speeds, bool from_aq)
2887 {
2888 	struct i40e_hw *hw = &pf->hw;
2889 	device_t dev = pf->dev;
2890 	struct i40e_aq_get_phy_abilities_resp abilities;
2891 	struct i40e_aq_set_phy_config config;
2892 	enum i40e_status_code aq_error = 0;
2893 
2894 	/* Get current capability information */
2895 	aq_error = i40e_aq_get_phy_capabilities(hw,
2896 	    FALSE, FALSE, &abilities, NULL);
2897 	if (aq_error) {
2898 		device_printf(dev,
2899 		    "%s: Error getting phy capabilities %d,"
2900 		    " aq error: %d\n", __func__, aq_error,
2901 		    hw->aq.asq_last_status);
2902 		return (EIO);
2903 	}
2904 
2905 	/* Prepare new config */
2906 	bzero(&config, sizeof(config));
2907 	if (from_aq)
2908 		config.link_speed = speeds;
2909 	else
2910 		config.link_speed = ixl_convert_sysctl_aq_link_speed(speeds, true);
2911 	config.phy_type = abilities.phy_type;
2912 	config.phy_type_ext = abilities.phy_type_ext;
2913 	config.abilities = abilities.abilities
2914 	    | I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
2915 	config.eee_capability = abilities.eee_capability;
2916 	config.eeer = abilities.eeer_val;
2917 	config.low_power_ctrl = abilities.d3_lpan;
2918 	config.fec_config = abilities.fec_cfg_curr_mod_ext_info
2919 	    & I40E_AQ_PHY_FEC_CONFIG_MASK;
2920 
2921 	/* Do aq command & restart link */
2922 	aq_error = i40e_aq_set_phy_config(hw, &config, NULL);
2923 	if (aq_error) {
2924 		device_printf(dev,
2925 		    "%s: Error setting new phy config %d,"
2926 		    " aq error: %d\n", __func__, aq_error,
2927 		    hw->aq.asq_last_status);
2928 		return (EIO);
2929 	}
2930 
2931 	return (0);
2932 }
2933 
2934 /*
2935 ** Supported link speeds
2936 **	Flags:
2937 **	 0x1 - 100 Mb
2938 **	 0x2 - 1G
2939 **	 0x4 - 10G
2940 **	 0x8 - 20G
2941 **	0x10 - 25G
2942 **	0x20 - 40G
2943 **	0x40 - 2.5G
2944 **	0x80 - 5G
2945 */
2946 static int
2947 ixl_sysctl_supported_speeds(SYSCTL_HANDLER_ARGS)
2948 {
2949 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
2950 	int supported = ixl_convert_sysctl_aq_link_speed(pf->supported_speeds, false);
2951 
2952 	return sysctl_handle_int(oidp, NULL, supported, req);
2953 }
2954 
2955 /*
2956 ** Control link advertise speed:
2957 **	Flags:
2958 **	 0x1 - advertise 100 Mb
2959 **	 0x2 - advertise 1G
2960 **	 0x4 - advertise 10G
2961 **	 0x8 - advertise 20G
2962 **	0x10 - advertise 25G
2963 **	0x20 - advertise 40G
2964 **	0x40 - advertise 2.5G
2965 **	0x80 - advertise 5G
2966 **
2967 **	Set to 0 to disable link
2968 */
2969 int
2970 ixl_sysctl_set_advertise(SYSCTL_HANDLER_ARGS)
2971 {
2972 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
2973 	device_t dev = pf->dev;
2974 	u8 converted_speeds;
2975 	int requested_ls = 0;
2976 	int error = 0;
2977 
2978 	/* Read in new mode */
2979 	requested_ls = pf->advertised_speed;
2980 	error = sysctl_handle_int(oidp, &requested_ls, 0, req);
2981 	if ((error) || (req->newptr == NULL))
2982 		return (error);
2983 	if (IXL_PF_IN_RECOVERY_MODE(pf)) {
2984 		device_printf(dev, "Interface is currently in FW recovery mode. "
2985 				"Setting advertise speed not supported\n");
2986 		return (EINVAL);
2987 	}
2988 
2989 	/* Error out if bits outside of possible flag range are set */
2990 	if ((requested_ls & ~((u8)0xFF)) != 0) {
2991 		device_printf(dev, "Input advertised speed out of range; "
2992 		    "valid flags are: 0x%02x\n",
2993 		    ixl_convert_sysctl_aq_link_speed(pf->supported_speeds, false));
2994 		return (EINVAL);
2995 	}
2996 
2997 	/* Check if adapter supports input value */
2998 	converted_speeds = ixl_convert_sysctl_aq_link_speed((u8)requested_ls, true);
2999 	if ((converted_speeds | pf->supported_speeds) != pf->supported_speeds) {
3000 		device_printf(dev, "Invalid advertised speed; "
3001 		    "valid flags are: 0x%02x\n",
3002 		    ixl_convert_sysctl_aq_link_speed(pf->supported_speeds, false));
3003 		return (EINVAL);
3004 	}
3005 
3006 	error = ixl_set_advertised_speeds(pf, requested_ls, false);
3007 	if (error)
3008 		return (error);
3009 
3010 	pf->advertised_speed = requested_ls;
3011 	ixl_update_link_status(pf);
3012 	return (0);
3013 }
3014 
3015 /*
3016  * Input: bitmap of enum i40e_aq_link_speed
3017  */
3018 u64
3019 ixl_max_aq_speed_to_value(u8 link_speeds)
3020 {
3021 	if (link_speeds & I40E_LINK_SPEED_40GB)
3022 		return IF_Gbps(40);
3023 	if (link_speeds & I40E_LINK_SPEED_25GB)
3024 		return IF_Gbps(25);
3025 	if (link_speeds & I40E_LINK_SPEED_20GB)
3026 		return IF_Gbps(20);
3027 	if (link_speeds & I40E_LINK_SPEED_10GB)
3028 		return IF_Gbps(10);
3029 	if (link_speeds & I40E_LINK_SPEED_5GB)
3030 		return IF_Gbps(5);
3031 	if (link_speeds & I40E_LINK_SPEED_2_5GB)
3032 		return IF_Mbps(2500);
3033 	if (link_speeds & I40E_LINK_SPEED_1GB)
3034 		return IF_Gbps(1);
3035 	if (link_speeds & I40E_LINK_SPEED_100MB)
3036 		return IF_Mbps(100);
3037 	else
3038 		/* Minimum supported link speed */
3039 		return IF_Mbps(100);
3040 }
3041 
3042 /*
3043 ** Get the width and transaction speed of
3044 ** the bus this adapter is plugged into.
3045 */
3046 void
3047 ixl_get_bus_info(struct ixl_pf *pf)
3048 {
3049 	struct i40e_hw *hw = &pf->hw;
3050 	device_t dev = pf->dev;
3051         u16 link;
3052         u32 offset, num_ports;
3053 	u64 max_speed;
3054 
3055 	/* Some devices don't use PCIE */
3056 	if (hw->mac.type == I40E_MAC_X722)
3057 		return;
3058 
3059         /* Read PCI Express Capabilities Link Status Register */
3060         pci_find_cap(dev, PCIY_EXPRESS, &offset);
3061         link = pci_read_config(dev, offset + PCIER_LINK_STA, 2);
3062 
3063 	/* Fill out hw struct with PCIE info */
3064 	i40e_set_pci_config_data(hw, link);
3065 
3066 	/* Use info to print out bandwidth messages */
3067         device_printf(dev,"PCI Express Bus: Speed %s %s\n",
3068             ((hw->bus.speed == i40e_bus_speed_8000) ? "8.0GT/s":
3069             (hw->bus.speed == i40e_bus_speed_5000) ? "5.0GT/s":
3070             (hw->bus.speed == i40e_bus_speed_2500) ? "2.5GT/s":"Unknown"),
3071             (hw->bus.width == i40e_bus_width_pcie_x8) ? "Width x8" :
3072             (hw->bus.width == i40e_bus_width_pcie_x4) ? "Width x4" :
3073             (hw->bus.width == i40e_bus_width_pcie_x2) ? "Width x2" :
3074             (hw->bus.width == i40e_bus_width_pcie_x1) ? "Width x1" :
3075             ("Unknown"));
3076 
3077 	/*
3078 	 * If adapter is in slot with maximum supported speed,
3079 	 * no warning message needs to be printed out.
3080 	 */
3081 	if (hw->bus.speed >= i40e_bus_speed_8000
3082 	    && hw->bus.width >= i40e_bus_width_pcie_x8)
3083 		return;
3084 
3085 	num_ports = bitcount32(hw->func_caps.valid_functions);
3086 	max_speed = ixl_max_aq_speed_to_value(pf->supported_speeds) / 1000000;
3087 
3088 	if ((num_ports * max_speed) > hw->bus.speed * hw->bus.width) {
3089                 device_printf(dev, "PCI-Express bandwidth available"
3090                     " for this device may be insufficient for"
3091                     " optimal performance.\n");
3092                 device_printf(dev, "Please move the device to a different"
3093 		    " PCI-e link with more lanes and/or higher"
3094 		    " transfer rate.\n");
3095         }
3096 }
3097 
3098 static int
3099 ixl_sysctl_show_fw(SYSCTL_HANDLER_ARGS)
3100 {
3101 	struct ixl_pf	*pf = (struct ixl_pf *)arg1;
3102 	struct i40e_hw	*hw = &pf->hw;
3103 	struct sbuf	*sbuf;
3104 
3105 	sbuf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
3106 	ixl_nvm_version_str(hw, sbuf);
3107 	sbuf_finish(sbuf);
3108 	sbuf_delete(sbuf);
3109 
3110 	return (0);
3111 }
3112 
3113 void
3114 ixl_print_nvm_cmd(device_t dev, struct i40e_nvm_access *nvma)
3115 {
3116 	u8 nvma_ptr = nvma->config & 0xFF;
3117 	u8 nvma_flags = (nvma->config & 0xF00) >> 8;
3118 	const char * cmd_str;
3119 
3120 	switch (nvma->command) {
3121 	case I40E_NVM_READ:
3122 		if (nvma_ptr == 0xF && nvma_flags == 0xF &&
3123 		    nvma->offset == 0 && nvma->data_size == 1) {
3124 			device_printf(dev, "NVMUPD: Get Driver Status Command\n");
3125 			return;
3126 		}
3127 		cmd_str = "READ ";
3128 		break;
3129 	case I40E_NVM_WRITE:
3130 		cmd_str = "WRITE";
3131 		break;
3132 	default:
3133 		device_printf(dev, "NVMUPD: unknown command: 0x%08x\n", nvma->command);
3134 		return;
3135 	}
3136 	device_printf(dev,
3137 	    "NVMUPD: cmd: %s ptr: 0x%02x flags: 0x%01x offset: 0x%08x data_s: 0x%08x\n",
3138 	    cmd_str, nvma_ptr, nvma_flags, nvma->offset, nvma->data_size);
3139 }
3140 
3141 int
3142 ixl_handle_nvmupd_cmd(struct ixl_pf *pf, struct ifdrv *ifd)
3143 {
3144 	struct i40e_hw *hw = &pf->hw;
3145 	struct i40e_nvm_access *nvma;
3146 	device_t dev = pf->dev;
3147 	enum i40e_status_code status = 0;
3148 	size_t nvma_size, ifd_len, exp_len;
3149 	int err, perrno;
3150 
3151 	DEBUGFUNC("ixl_handle_nvmupd_cmd");
3152 
3153 	/* Sanity checks */
3154 	nvma_size = sizeof(struct i40e_nvm_access);
3155 	ifd_len = ifd->ifd_len;
3156 
3157 	if (ifd_len < nvma_size ||
3158 	    ifd->ifd_data == NULL) {
3159 		device_printf(dev, "%s: incorrect ifdrv length or data pointer\n",
3160 		    __func__);
3161 		device_printf(dev, "%s: ifdrv length: %zu, sizeof(struct i40e_nvm_access): %zu\n",
3162 		    __func__, ifd_len, nvma_size);
3163 		device_printf(dev, "%s: data pointer: %p\n", __func__,
3164 		    ifd->ifd_data);
3165 		return (EINVAL);
3166 	}
3167 
3168 	nvma = malloc(ifd_len, M_IXL, M_WAITOK);
3169 	err = copyin(ifd->ifd_data, nvma, ifd_len);
3170 	if (err) {
3171 		device_printf(dev, "%s: Cannot get request from user space\n",
3172 		    __func__);
3173 		free(nvma, M_IXL);
3174 		return (err);
3175 	}
3176 
3177 	if (pf->dbg_mask & IXL_DBG_NVMUPD)
3178 		ixl_print_nvm_cmd(dev, nvma);
3179 
3180 	if (IXL_PF_IS_RESETTING(pf)) {
3181 		int count = 0;
3182 		while (count++ < 100) {
3183 			i40e_msec_delay(100);
3184 			if (!(IXL_PF_IS_RESETTING(pf)))
3185 				break;
3186 		}
3187 	}
3188 
3189 	if (IXL_PF_IS_RESETTING(pf)) {
3190 		device_printf(dev,
3191 		    "%s: timeout waiting for EMP reset to finish\n",
3192 		    __func__);
3193 		free(nvma, M_IXL);
3194 		return (-EBUSY);
3195 	}
3196 
3197 	if (nvma->data_size < 1 || nvma->data_size > 4096) {
3198 		device_printf(dev,
3199 		    "%s: invalid request, data size not in supported range\n",
3200 		    __func__);
3201 		free(nvma, M_IXL);
3202 		return (EINVAL);
3203 	}
3204 
3205 	/*
3206 	 * Older versions of the NVM update tool don't set ifd_len to the size
3207 	 * of the entire buffer passed to the ioctl. Check the data_size field
3208 	 * in the contained i40e_nvm_access struct and ensure everything is
3209 	 * copied in from userspace.
3210 	 */
3211 	exp_len = nvma_size + nvma->data_size - 1; /* One byte is kept in struct */
3212 
3213 	if (ifd_len < exp_len) {
3214 		ifd_len = exp_len;
3215 		nvma = realloc(nvma, ifd_len, M_IXL, M_WAITOK);
3216 		err = copyin(ifd->ifd_data, nvma, ifd_len);
3217 		if (err) {
3218 			device_printf(dev, "%s: Cannot get request from user space\n",
3219 					__func__);
3220 			free(nvma, M_IXL);
3221 			return (err);
3222 		}
3223 	}
3224 
3225 	// TODO: Might need a different lock here
3226 	// IXL_PF_LOCK(pf);
3227 	status = i40e_nvmupd_command(hw, nvma, nvma->data, &perrno);
3228 	// IXL_PF_UNLOCK(pf);
3229 
3230 	err = copyout(nvma, ifd->ifd_data, ifd_len);
3231 	free(nvma, M_IXL);
3232 	if (err) {
3233 		device_printf(dev, "%s: Cannot return data to user space\n",
3234 				__func__);
3235 		return (err);
3236 	}
3237 
3238 	/* Let the nvmupdate report errors, show them only when debug is enabled */
3239 	if (status != 0 && (pf->dbg_mask & IXL_DBG_NVMUPD) != 0)
3240 		device_printf(dev, "i40e_nvmupd_command status %s, perrno %d\n",
3241 		    i40e_stat_str(hw, status), perrno);
3242 
3243 	/*
3244 	 * -EPERM is actually ERESTART, which the kernel interprets as it needing
3245 	 * to run this ioctl again. So use -EACCES for -EPERM instead.
3246 	 */
3247 	if (perrno == -EPERM)
3248 		return (-EACCES);
3249 	else
3250 		return (perrno);
3251 }
3252 
3253 int
3254 ixl_find_i2c_interface(struct ixl_pf *pf)
3255 {
3256 	struct i40e_hw *hw = &pf->hw;
3257 	bool i2c_en, port_matched;
3258 	u32 reg;
3259 
3260 	for (int i = 0; i < 4; i++) {
3261 		reg = rd32(hw, I40E_GLGEN_MDIO_I2C_SEL(i));
3262 		i2c_en = (reg & I40E_GLGEN_MDIO_I2C_SEL_MDIO_I2C_SEL_MASK);
3263 		port_matched = ((reg & I40E_GLGEN_MDIO_I2C_SEL_PHY_PORT_NUM_MASK)
3264 		    >> I40E_GLGEN_MDIO_I2C_SEL_PHY_PORT_NUM_SHIFT)
3265 		    & BIT(hw->port);
3266 		if (i2c_en && port_matched)
3267 			return (i);
3268 	}
3269 
3270 	return (-1);
3271 }
3272 
3273 void
3274 ixl_set_link(struct ixl_pf *pf, bool enable)
3275 {
3276 	struct i40e_hw *hw = &pf->hw;
3277 	device_t dev = pf->dev;
3278 	struct i40e_aq_get_phy_abilities_resp abilities;
3279 	struct i40e_aq_set_phy_config config;
3280 	enum i40e_status_code aq_error = 0;
3281 	u32 phy_type, phy_type_ext;
3282 
3283 	/* Get initial capability information */
3284 	aq_error = i40e_aq_get_phy_capabilities(hw,
3285 	    FALSE, TRUE, &abilities, NULL);
3286 	if (aq_error) {
3287 		device_printf(dev,
3288 		    "%s: Error getting phy capabilities %d,"
3289 		    " aq error: %d\n", __func__, aq_error,
3290 		    hw->aq.asq_last_status);
3291 		return;
3292 	}
3293 
3294 	phy_type = abilities.phy_type;
3295 	phy_type_ext = abilities.phy_type_ext;
3296 
3297 	/* Get current capability information */
3298 	aq_error = i40e_aq_get_phy_capabilities(hw,
3299 	    FALSE, FALSE, &abilities, NULL);
3300 	if (aq_error) {
3301 		device_printf(dev,
3302 		    "%s: Error getting phy capabilities %d,"
3303 		    " aq error: %d\n", __func__, aq_error,
3304 		    hw->aq.asq_last_status);
3305 		return;
3306 	}
3307 
3308 	/* Prepare new config */
3309 	memset(&config, 0, sizeof(config));
3310 	config.link_speed = abilities.link_speed;
3311 	config.abilities = abilities.abilities;
3312 	config.eee_capability = abilities.eee_capability;
3313 	config.eeer = abilities.eeer_val;
3314 	config.low_power_ctrl = abilities.d3_lpan;
3315 	config.fec_config = abilities.fec_cfg_curr_mod_ext_info
3316 	    & I40E_AQ_PHY_FEC_CONFIG_MASK;
3317 	config.phy_type = 0;
3318 	config.phy_type_ext = 0;
3319 
3320 	config.abilities &= ~(I40E_AQ_PHY_FLAG_PAUSE_TX |
3321 			I40E_AQ_PHY_FLAG_PAUSE_RX);
3322 
3323 	switch (pf->fc) {
3324 	case I40E_FC_FULL:
3325 		config.abilities |= I40E_AQ_PHY_FLAG_PAUSE_TX |
3326 			I40E_AQ_PHY_FLAG_PAUSE_RX;
3327 		break;
3328 	case I40E_FC_RX_PAUSE:
3329 		config.abilities |= I40E_AQ_PHY_FLAG_PAUSE_RX;
3330 		break;
3331 	case I40E_FC_TX_PAUSE:
3332 		config.abilities |= I40E_AQ_PHY_FLAG_PAUSE_TX;
3333 		break;
3334 	default:
3335 		break;
3336 	}
3337 
3338 	if (enable) {
3339 		config.phy_type = phy_type;
3340 		config.phy_type_ext = phy_type_ext;
3341 
3342 	}
3343 
3344 	aq_error = i40e_aq_set_phy_config(hw, &config, NULL);
3345 	if (aq_error) {
3346 		device_printf(dev,
3347 		    "%s: Error setting new phy config %d,"
3348 		    " aq error: %d\n", __func__, aq_error,
3349 		    hw->aq.asq_last_status);
3350 		return;
3351 	}
3352 
3353 	aq_error = i40e_aq_set_link_restart_an(hw, enable, NULL);
3354 	if (aq_error) {
3355 		device_printf(dev,
3356 		    "%s: Error set link config %d,"
3357 		    " aq error: %d\n", __func__, aq_error,
3358 		    hw->aq.asq_last_status);
3359 		return;
3360 	}
3361 }
3362 
3363 static char *
3364 ixl_phy_type_string(u32 bit_pos, bool ext)
3365 {
3366 	static char * phy_types_str[32] = {
3367 		"SGMII",
3368 		"1000BASE-KX",
3369 		"10GBASE-KX4",
3370 		"10GBASE-KR",
3371 		"40GBASE-KR4",
3372 		"XAUI",
3373 		"XFI",
3374 		"SFI",
3375 		"XLAUI",
3376 		"XLPPI",
3377 		"40GBASE-CR4",
3378 		"10GBASE-CR1",
3379 		"SFP+ Active DA",
3380 		"QSFP+ Active DA",
3381 		"Reserved (14)",
3382 		"Reserved (15)",
3383 		"Reserved (16)",
3384 		"100BASE-TX",
3385 		"1000BASE-T",
3386 		"10GBASE-T",
3387 		"10GBASE-SR",
3388 		"10GBASE-LR",
3389 		"10GBASE-SFP+Cu",
3390 		"10GBASE-CR1",
3391 		"40GBASE-CR4",
3392 		"40GBASE-SR4",
3393 		"40GBASE-LR4",
3394 		"1000BASE-SX",
3395 		"1000BASE-LX",
3396 		"1000BASE-T Optical",
3397 		"20GBASE-KR2",
3398 		"Reserved (31)"
3399 	};
3400 	static char * ext_phy_types_str[8] = {
3401 		"25GBASE-KR",
3402 		"25GBASE-CR",
3403 		"25GBASE-SR",
3404 		"25GBASE-LR",
3405 		"25GBASE-AOC",
3406 		"25GBASE-ACC",
3407 		"2.5GBASE-T",
3408 		"5GBASE-T"
3409 	};
3410 
3411 	if (ext && bit_pos > 7) return "Invalid_Ext";
3412 	if (bit_pos > 31) return "Invalid";
3413 
3414 	return (ext) ? ext_phy_types_str[bit_pos] : phy_types_str[bit_pos];
3415 }
3416 
3417 /* TODO: ERJ: I don't this is necessary anymore. */
3418 int
3419 ixl_aq_get_link_status(struct ixl_pf *pf, struct i40e_aqc_get_link_status *link_status)
3420 {
3421 	device_t dev = pf->dev;
3422 	struct i40e_hw *hw = &pf->hw;
3423 	struct i40e_aq_desc desc;
3424 	enum i40e_status_code status;
3425 
3426 	struct i40e_aqc_get_link_status *aq_link_status =
3427 		(struct i40e_aqc_get_link_status *)&desc.params.raw;
3428 
3429 	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_get_link_status);
3430 	link_status->command_flags = CPU_TO_LE16(I40E_AQ_LSE_ENABLE);
3431 	status = i40e_asq_send_command(hw, &desc, NULL, 0, NULL);
3432 	if (status) {
3433 		device_printf(dev,
3434 		    "%s: i40e_aqc_opc_get_link_status status %s, aq error %s\n",
3435 		    __func__, i40e_stat_str(hw, status),
3436 		    i40e_aq_str(hw, hw->aq.asq_last_status));
3437 		return (EIO);
3438 	}
3439 
3440 	bcopy(aq_link_status, link_status, sizeof(struct i40e_aqc_get_link_status));
3441 	return (0);
3442 }
3443 
3444 static char *
3445 ixl_phy_type_string_ls(u8 val)
3446 {
3447 	if (val >= 0x1F)
3448 		return ixl_phy_type_string(val - 0x1F, true);
3449 	else
3450 		return ixl_phy_type_string(val, false);
3451 }
3452 
3453 static int
3454 ixl_sysctl_link_status(SYSCTL_HANDLER_ARGS)
3455 {
3456 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
3457 	device_t dev = pf->dev;
3458 	struct sbuf *buf;
3459 	int error = 0;
3460 
3461 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
3462 	if (!buf) {
3463 		device_printf(dev, "Could not allocate sbuf for sysctl output.\n");
3464 		return (ENOMEM);
3465 	}
3466 
3467 	struct i40e_aqc_get_link_status link_status;
3468 	error = ixl_aq_get_link_status(pf, &link_status);
3469 	if (error) {
3470 		sbuf_delete(buf);
3471 		return (error);
3472 	}
3473 
3474 	sbuf_printf(buf, "\n"
3475 	    "PHY Type : 0x%02x<%s>\n"
3476 	    "Speed    : 0x%02x\n"
3477 	    "Link info: 0x%02x\n"
3478 	    "AN info  : 0x%02x\n"
3479 	    "Ext info : 0x%02x\n"
3480 	    "Loopback : 0x%02x\n"
3481 	    "Max Frame: %d\n"
3482 	    "Config   : 0x%02x\n"
3483 	    "Power    : 0x%02x",
3484 	    link_status.phy_type,
3485 	    ixl_phy_type_string_ls(link_status.phy_type),
3486 	    link_status.link_speed,
3487 	    link_status.link_info,
3488 	    link_status.an_info,
3489 	    link_status.ext_info,
3490 	    link_status.loopback,
3491 	    link_status.max_frame_size,
3492 	    link_status.config,
3493 	    link_status.power_desc);
3494 
3495 	error = sbuf_finish(buf);
3496 	if (error)
3497 		device_printf(dev, "Error finishing sbuf: %d\n", error);
3498 
3499 	sbuf_delete(buf);
3500 	return (error);
3501 }
3502 
3503 static int
3504 ixl_sysctl_phy_abilities(SYSCTL_HANDLER_ARGS)
3505 {
3506 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
3507 	struct i40e_hw *hw = &pf->hw;
3508 	device_t dev = pf->dev;
3509 	enum i40e_status_code status;
3510 	struct i40e_aq_get_phy_abilities_resp abilities;
3511 	struct sbuf *buf;
3512 	int error = 0;
3513 
3514 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
3515 	if (!buf) {
3516 		device_printf(dev, "Could not allocate sbuf for sysctl output.\n");
3517 		return (ENOMEM);
3518 	}
3519 
3520 	status = i40e_aq_get_phy_capabilities(hw,
3521 	    FALSE, arg2 != 0, &abilities, NULL);
3522 	if (status) {
3523 		device_printf(dev,
3524 		    "%s: i40e_aq_get_phy_capabilities() status %s, aq error %s\n",
3525 		    __func__, i40e_stat_str(hw, status),
3526 		    i40e_aq_str(hw, hw->aq.asq_last_status));
3527 		sbuf_delete(buf);
3528 		return (EIO);
3529 	}
3530 
3531 	sbuf_printf(buf, "\n"
3532 	    "PHY Type : %08x",
3533 	    abilities.phy_type);
3534 
3535 	if (abilities.phy_type != 0) {
3536 		sbuf_printf(buf, "<");
3537 		for (int i = 0; i < 32; i++)
3538 			if ((1 << i) & abilities.phy_type)
3539 				sbuf_printf(buf, "%s,", ixl_phy_type_string(i, false));
3540 		sbuf_printf(buf, ">");
3541 	}
3542 
3543 	sbuf_printf(buf, "\nPHY Ext  : %02x",
3544 	    abilities.phy_type_ext);
3545 
3546 	if (abilities.phy_type_ext != 0) {
3547 		sbuf_printf(buf, "<");
3548 		for (int i = 0; i < 4; i++)
3549 			if ((1 << i) & abilities.phy_type_ext)
3550 				sbuf_printf(buf, "%s,",
3551 				    ixl_phy_type_string(i, true));
3552 		sbuf_printf(buf, ">");
3553 	}
3554 
3555 	sbuf_printf(buf, "\nSpeed    : %02x", abilities.link_speed);
3556 	if (abilities.link_speed != 0) {
3557 		u8 link_speed;
3558 		sbuf_printf(buf, " <");
3559 		for (int i = 0; i < 8; i++) {
3560 			link_speed = (1 << i) & abilities.link_speed;
3561 			if (link_speed)
3562 				sbuf_printf(buf, "%s, ",
3563 				    ixl_link_speed_string(link_speed));
3564 		}
3565 		sbuf_printf(buf, ">");
3566 	}
3567 
3568 	sbuf_printf(buf, "\n"
3569 	    "Abilities: %02x\n"
3570 	    "EEE cap  : %04x\n"
3571 	    "EEER reg : %08x\n"
3572 	    "D3 Lpan  : %02x\n"
3573 	    "ID       : %02x %02x %02x %02x\n"
3574 	    "ModType  : %02x %02x %02x\n"
3575 	    "ModType E: %01x\n"
3576 	    "FEC Cfg  : %02x\n"
3577 	    "Ext CC   : %02x",
3578 	    abilities.abilities, abilities.eee_capability,
3579 	    abilities.eeer_val, abilities.d3_lpan,
3580 	    abilities.phy_id[0], abilities.phy_id[1],
3581 	    abilities.phy_id[2], abilities.phy_id[3],
3582 	    abilities.module_type[0], abilities.module_type[1],
3583 	    abilities.module_type[2], (abilities.fec_cfg_curr_mod_ext_info & 0xe0) >> 5,
3584 	    abilities.fec_cfg_curr_mod_ext_info & 0x1F,
3585 	    abilities.ext_comp_code);
3586 
3587 	error = sbuf_finish(buf);
3588 	if (error)
3589 		device_printf(dev, "Error finishing sbuf: %d\n", error);
3590 
3591 	sbuf_delete(buf);
3592 	return (error);
3593 }
3594 
3595 static int
3596 ixl_sysctl_phy_statistics(SYSCTL_HANDLER_ARGS)
3597 {
3598 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
3599 	struct i40e_hw *hw = &pf->hw;
3600 	device_t dev = pf->dev;
3601 	struct sbuf *buf;
3602 	int error = 0;
3603 
3604 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
3605 	if (buf == NULL) {
3606 		device_printf(dev, "Could not allocate sbuf for sysctl output.\n");
3607 		return (ENOMEM);
3608 	}
3609 
3610 	if (hw->mac.type == I40E_MAC_X722) {
3611 		sbuf_printf(buf, "\n"
3612 		    "PCS Link Control Register:                          unavailable\n"
3613 		    "PCS Link Status 1:                                  unavailable\n"
3614 		    "PCS Link Status 2:                                  unavailable\n"
3615 		    "XGMII FIFO Status:                                  unavailable\n"
3616 		    "Auto-Negotiation (AN) Status:                       unavailable\n"
3617 		    "KR PCS Status:                                      unavailable\n"
3618 		    "KR FEC Status 1 – FEC Correctable Blocks Counter:   unavailable\n"
3619 		    "KR FEC Status 2 – FEC Uncorrectable Blocks Counter: unavailable"
3620 		);
3621 	} else {
3622 		sbuf_printf(buf, "\n"
3623 		    "PCS Link Control Register:                          %#010X\n"
3624 		    "PCS Link Status 1:                                  %#010X\n"
3625 		    "PCS Link Status 2:                                  %#010X\n"
3626 		    "XGMII FIFO Status:                                  %#010X\n"
3627 		    "Auto-Negotiation (AN) Status:                       %#010X\n"
3628 		    "KR PCS Status:                                      %#010X\n"
3629 		    "KR FEC Status 1 – FEC Correctable Blocks Counter:   %#010X\n"
3630 		    "KR FEC Status 2 – FEC Uncorrectable Blocks Counter: %#010X",
3631 		    rd32(hw, I40E_PRTMAC_PCS_LINK_CTRL),
3632 		    rd32(hw, I40E_PRTMAC_PCS_LINK_STATUS1(0)),
3633 		    rd32(hw, I40E_PRTMAC_PCS_LINK_STATUS2),
3634 		    rd32(hw, I40E_PRTMAC_PCS_XGMII_FIFO_STATUS),
3635 		    rd32(hw, I40E_PRTMAC_PCS_AN_LP_STATUS),
3636 		    rd32(hw, I40E_PRTMAC_PCS_KR_STATUS),
3637 		    rd32(hw, I40E_PRTMAC_PCS_FEC_KR_STATUS1),
3638 		    rd32(hw, I40E_PRTMAC_PCS_FEC_KR_STATUS2)
3639 		);
3640 	}
3641 
3642 	error = sbuf_finish(buf);
3643 	if (error)
3644 		device_printf(dev, "Error finishing sbuf: %d\n", error);
3645 
3646 	sbuf_delete(buf);
3647 	return (error);
3648 }
3649 
3650 static int
3651 ixl_sysctl_sw_filter_list(SYSCTL_HANDLER_ARGS)
3652 {
3653 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
3654 	struct ixl_vsi *vsi = &pf->vsi;
3655 	struct ixl_mac_filter *f;
3656 	device_t dev = pf->dev;
3657 	int error = 0, ftl_len = 0, ftl_counter = 0;
3658 
3659 	struct sbuf *buf;
3660 
3661 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
3662 	if (!buf) {
3663 		device_printf(dev, "Could not allocate sbuf for sysctl output.\n");
3664 		return (ENOMEM);
3665 	}
3666 
3667 	sbuf_printf(buf, "\n");
3668 
3669 	/* Print MAC filters */
3670 	sbuf_printf(buf, "PF Filters:\n");
3671 	LIST_FOREACH(f, &vsi->ftl, ftle)
3672 		ftl_len++;
3673 
3674 	if (ftl_len < 1)
3675 		sbuf_printf(buf, "(none)\n");
3676 	else {
3677 		LIST_FOREACH(f, &vsi->ftl, ftle) {
3678 			sbuf_printf(buf,
3679 			    MAC_FORMAT ", vlan %4d, flags %#06x",
3680 			    MAC_FORMAT_ARGS(f->macaddr), f->vlan, f->flags);
3681 			/* don't print '\n' for last entry */
3682 			if (++ftl_counter != ftl_len)
3683 				sbuf_printf(buf, "\n");
3684 		}
3685 	}
3686 
3687 #ifdef PCI_IOV
3688 	/* TODO: Give each VF its own filter list sysctl */
3689 	struct ixl_vf *vf;
3690 	if (pf->num_vfs > 0) {
3691 		sbuf_printf(buf, "\n\n");
3692 		for (int i = 0; i < pf->num_vfs; i++) {
3693 			vf = &pf->vfs[i];
3694 			if (!(vf->vf_flags & VF_FLAG_ENABLED))
3695 				continue;
3696 
3697 			vsi = &vf->vsi;
3698 			ftl_len = 0, ftl_counter = 0;
3699 			sbuf_printf(buf, "VF-%d Filters:\n", vf->vf_num);
3700 			LIST_FOREACH(f, &vsi->ftl, ftle)
3701 				ftl_len++;
3702 
3703 			if (ftl_len < 1)
3704 				sbuf_printf(buf, "(none)\n");
3705 			else {
3706 				LIST_FOREACH(f, &vsi->ftl, ftle) {
3707 					sbuf_printf(buf,
3708 					    MAC_FORMAT ", vlan %4d, flags %#06x\n",
3709 					    MAC_FORMAT_ARGS(f->macaddr), f->vlan, f->flags);
3710 				}
3711 			}
3712 		}
3713 	}
3714 #endif
3715 
3716 	error = sbuf_finish(buf);
3717 	if (error)
3718 		device_printf(dev, "Error finishing sbuf: %d\n", error);
3719 	sbuf_delete(buf);
3720 
3721 	return (error);
3722 }
3723 
3724 #define IXL_SW_RES_SIZE 0x14
3725 int
3726 ixl_res_alloc_cmp(const void *a, const void *b)
3727 {
3728 	const struct i40e_aqc_switch_resource_alloc_element_resp *one, *two;
3729 	one = (const struct i40e_aqc_switch_resource_alloc_element_resp *)a;
3730 	two = (const struct i40e_aqc_switch_resource_alloc_element_resp *)b;
3731 
3732 	return ((int)one->resource_type - (int)two->resource_type);
3733 }
3734 
3735 /*
3736  * Longest string length: 25
3737  */
3738 const char *
3739 ixl_switch_res_type_string(u8 type)
3740 {
3741 	static const char * ixl_switch_res_type_strings[IXL_SW_RES_SIZE] = {
3742 		"VEB",
3743 		"VSI",
3744 		"Perfect Match MAC address",
3745 		"S-tag",
3746 		"(Reserved)",
3747 		"Multicast hash entry",
3748 		"Unicast hash entry",
3749 		"VLAN",
3750 		"VSI List entry",
3751 		"(Reserved)",
3752 		"VLAN Statistic Pool",
3753 		"Mirror Rule",
3754 		"Queue Set",
3755 		"Inner VLAN Forward filter",
3756 		"(Reserved)",
3757 		"Inner MAC",
3758 		"IP",
3759 		"GRE/VN1 Key",
3760 		"VN2 Key",
3761 		"Tunneling Port"
3762 	};
3763 
3764 	if (type < IXL_SW_RES_SIZE)
3765 		return ixl_switch_res_type_strings[type];
3766 	else
3767 		return "(Reserved)";
3768 }
3769 
3770 static int
3771 ixl_sysctl_hw_res_alloc(SYSCTL_HANDLER_ARGS)
3772 {
3773 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
3774 	struct i40e_hw *hw = &pf->hw;
3775 	device_t dev = pf->dev;
3776 	struct sbuf *buf;
3777 	enum i40e_status_code status;
3778 	int error = 0;
3779 
3780 	u8 num_entries;
3781 	struct i40e_aqc_switch_resource_alloc_element_resp resp[IXL_SW_RES_SIZE];
3782 
3783 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
3784 	if (!buf) {
3785 		device_printf(dev, "Could not allocate sbuf for output.\n");
3786 		return (ENOMEM);
3787 	}
3788 
3789 	bzero(resp, sizeof(resp));
3790 	status = i40e_aq_get_switch_resource_alloc(hw, &num_entries,
3791 				resp,
3792 				IXL_SW_RES_SIZE,
3793 				NULL);
3794 	if (status) {
3795 		device_printf(dev,
3796 		    "%s: get_switch_resource_alloc() error %s, aq error %s\n",
3797 		    __func__, i40e_stat_str(hw, status),
3798 		    i40e_aq_str(hw, hw->aq.asq_last_status));
3799 		sbuf_delete(buf);
3800 		return (error);
3801 	}
3802 
3803 	/* Sort entries by type for display */
3804 	qsort(resp, num_entries,
3805 	    sizeof(struct i40e_aqc_switch_resource_alloc_element_resp),
3806 	    &ixl_res_alloc_cmp);
3807 
3808 	sbuf_cat(buf, "\n");
3809 	sbuf_printf(buf, "# of entries: %d\n", num_entries);
3810 	sbuf_printf(buf,
3811 	    "                     Type | Guaranteed | Total | Used   | Un-allocated\n"
3812 	    "                          | (this)     | (all) | (this) | (all)       \n");
3813 	for (int i = 0; i < num_entries; i++) {
3814 		sbuf_printf(buf,
3815 		    "%25s | %10d   %5d   %6d   %12d",
3816 		    ixl_switch_res_type_string(resp[i].resource_type),
3817 		    resp[i].guaranteed,
3818 		    resp[i].total,
3819 		    resp[i].used,
3820 		    resp[i].total_unalloced);
3821 		if (i < num_entries - 1)
3822 			sbuf_cat(buf, "\n");
3823 	}
3824 
3825 	error = sbuf_finish(buf);
3826 	if (error)
3827 		device_printf(dev, "Error finishing sbuf: %d\n", error);
3828 
3829 	sbuf_delete(buf);
3830 	return (error);
3831 }
3832 
3833 enum ixl_sw_seid_offset {
3834 	IXL_SW_SEID_EMP = 1,
3835 	IXL_SW_SEID_MAC_START = 2,
3836 	IXL_SW_SEID_MAC_END = 5,
3837 	IXL_SW_SEID_PF_START = 16,
3838 	IXL_SW_SEID_PF_END = 31,
3839 	IXL_SW_SEID_VF_START = 32,
3840 	IXL_SW_SEID_VF_END = 159,
3841 };
3842 
3843 /*
3844  * Caller must init and delete sbuf; this function will clear and
3845  * finish it for caller.
3846  *
3847  * Note: The SEID argument only applies for elements defined by FW at
3848  * power-on; these include the EMP, Ports, PFs and VFs.
3849  */
3850 static char *
3851 ixl_switch_element_string(struct sbuf *s, u8 element_type, u16 seid)
3852 {
3853 	sbuf_clear(s);
3854 
3855 	/* If SEID is in certain ranges, then we can infer the
3856 	 * mapping of SEID to switch element.
3857 	 */
3858 	if (seid == IXL_SW_SEID_EMP) {
3859 		sbuf_cat(s, "EMP");
3860 		goto out;
3861 	} else if (seid >= IXL_SW_SEID_MAC_START &&
3862 	    seid <= IXL_SW_SEID_MAC_END) {
3863 		sbuf_printf(s, "MAC  %2d",
3864 		    seid - IXL_SW_SEID_MAC_START);
3865 		goto out;
3866 	} else if (seid >= IXL_SW_SEID_PF_START &&
3867 	    seid <= IXL_SW_SEID_PF_END) {
3868 		sbuf_printf(s, "PF  %3d",
3869 		    seid - IXL_SW_SEID_PF_START);
3870 		goto out;
3871 	} else if (seid >= IXL_SW_SEID_VF_START &&
3872 	    seid <= IXL_SW_SEID_VF_END) {
3873 		sbuf_printf(s, "VF  %3d",
3874 		    seid - IXL_SW_SEID_VF_START);
3875 		goto out;
3876 	}
3877 
3878 	switch (element_type) {
3879 	case I40E_AQ_SW_ELEM_TYPE_BMC:
3880 		sbuf_cat(s, "BMC");
3881 		break;
3882 	case I40E_AQ_SW_ELEM_TYPE_PV:
3883 		sbuf_cat(s, "PV");
3884 		break;
3885 	case I40E_AQ_SW_ELEM_TYPE_VEB:
3886 		sbuf_cat(s, "VEB");
3887 		break;
3888 	case I40E_AQ_SW_ELEM_TYPE_PA:
3889 		sbuf_cat(s, "PA");
3890 		break;
3891 	case I40E_AQ_SW_ELEM_TYPE_VSI:
3892 		sbuf_printf(s, "VSI");
3893 		break;
3894 	default:
3895 		sbuf_cat(s, "?");
3896 		break;
3897 	}
3898 
3899 out:
3900 	sbuf_finish(s);
3901 	return sbuf_data(s);
3902 }
3903 
3904 static int
3905 ixl_sw_cfg_elem_seid_cmp(const void *a, const void *b)
3906 {
3907 	const struct i40e_aqc_switch_config_element_resp *one, *two;
3908 	one = (const struct i40e_aqc_switch_config_element_resp *)a;
3909 	two = (const struct i40e_aqc_switch_config_element_resp *)b;
3910 
3911 	return ((int)one->seid - (int)two->seid);
3912 }
3913 
3914 static int
3915 ixl_sysctl_switch_config(SYSCTL_HANDLER_ARGS)
3916 {
3917 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
3918 	struct i40e_hw *hw = &pf->hw;
3919 	device_t dev = pf->dev;
3920 	struct sbuf *buf;
3921 	struct sbuf *nmbuf;
3922 	enum i40e_status_code status;
3923 	int error = 0;
3924 	u16 next = 0;
3925 	u8 aq_buf[I40E_AQ_LARGE_BUF];
3926 
3927 	struct i40e_aqc_switch_config_element_resp *elem;
3928 	struct i40e_aqc_get_switch_config_resp *sw_config;
3929 	sw_config = (struct i40e_aqc_get_switch_config_resp *)aq_buf;
3930 
3931 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
3932 	if (!buf) {
3933 		device_printf(dev, "Could not allocate sbuf for sysctl output.\n");
3934 		return (ENOMEM);
3935 	}
3936 
3937 	status = i40e_aq_get_switch_config(hw, sw_config,
3938 	    sizeof(aq_buf), &next, NULL);
3939 	if (status) {
3940 		device_printf(dev,
3941 		    "%s: aq_get_switch_config() error %s, aq error %s\n",
3942 		    __func__, i40e_stat_str(hw, status),
3943 		    i40e_aq_str(hw, hw->aq.asq_last_status));
3944 		sbuf_delete(buf);
3945 		return error;
3946 	}
3947 	if (next)
3948 		device_printf(dev, "%s: TODO: get more config with SEID %d\n",
3949 		    __func__, next);
3950 
3951 	nmbuf = sbuf_new_auto();
3952 	if (!nmbuf) {
3953 		device_printf(dev, "Could not allocate sbuf for name output.\n");
3954 		sbuf_delete(buf);
3955 		return (ENOMEM);
3956 	}
3957 
3958 	/* Sort entries by SEID for display */
3959 	qsort(sw_config->element, sw_config->header.num_reported,
3960 	    sizeof(struct i40e_aqc_switch_config_element_resp),
3961 	    &ixl_sw_cfg_elem_seid_cmp);
3962 
3963 	sbuf_cat(buf, "\n");
3964 	/* Assuming <= 255 elements in switch */
3965 	sbuf_printf(buf, "# of reported elements: %d\n", sw_config->header.num_reported);
3966 	sbuf_printf(buf, "total # of elements: %d\n", sw_config->header.num_total);
3967 	/* Exclude:
3968 	 * Revision -- all elements are revision 1 for now
3969 	 */
3970 	sbuf_printf(buf,
3971 	    "SEID (  Name  ) |  Up  (  Name  ) | Down (  Name  ) | Conn Type\n"
3972 	    "                |                 |                 | (uplink)\n");
3973 	for (int i = 0; i < sw_config->header.num_reported; i++) {
3974 		elem = &sw_config->element[i];
3975 
3976 		// "%4d (%8s) | %8s   %8s   %#8x",
3977 		sbuf_printf(buf, "%4d", elem->seid);
3978 		sbuf_cat(buf, " ");
3979 		sbuf_printf(buf, "(%8s)", ixl_switch_element_string(nmbuf,
3980 		    elem->element_type, elem->seid));
3981 		sbuf_cat(buf, " | ");
3982 		sbuf_printf(buf, "%4d", elem->uplink_seid);
3983 		sbuf_cat(buf, " ");
3984 		sbuf_printf(buf, "(%8s)", ixl_switch_element_string(nmbuf,
3985 		    0, elem->uplink_seid));
3986 		sbuf_cat(buf, " | ");
3987 		sbuf_printf(buf, "%4d", elem->downlink_seid);
3988 		sbuf_cat(buf, " ");
3989 		sbuf_printf(buf, "(%8s)", ixl_switch_element_string(nmbuf,
3990 		    0, elem->downlink_seid));
3991 		sbuf_cat(buf, " | ");
3992 		sbuf_printf(buf, "%8d", elem->connection_type);
3993 		if (i < sw_config->header.num_reported - 1)
3994 			sbuf_cat(buf, "\n");
3995 	}
3996 	sbuf_delete(nmbuf);
3997 
3998 	error = sbuf_finish(buf);
3999 	if (error)
4000 		device_printf(dev, "Error finishing sbuf: %d\n", error);
4001 
4002 	sbuf_delete(buf);
4003 
4004 	return (error);
4005 }
4006 
4007 static int
4008 ixl_sysctl_switch_vlans(SYSCTL_HANDLER_ARGS)
4009 {
4010 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4011 	struct i40e_hw *hw = &pf->hw;
4012 	device_t dev = pf->dev;
4013 	int requested_vlan = -1;
4014 	enum i40e_status_code status = 0;
4015 	int error = 0;
4016 
4017 	error = sysctl_handle_int(oidp, &requested_vlan, 0, req);
4018 	if ((error) || (req->newptr == NULL))
4019 	    return (error);
4020 
4021 	if ((hw->flags & I40E_HW_FLAG_802_1AD_CAPABLE) == 0) {
4022 		device_printf(dev, "Flags disallow setting of vlans\n");
4023 		return (ENODEV);
4024 	}
4025 
4026 	hw->switch_tag = requested_vlan;
4027 	device_printf(dev,
4028 	    "Setting switch config to switch_tag=%04x, first_tag=%04x, second_tag=%04x\n",
4029 	    hw->switch_tag, hw->first_tag, hw->second_tag);
4030 	status = i40e_aq_set_switch_config(hw, 0, 0, 0, NULL);
4031 	if (status) {
4032 		device_printf(dev,
4033 		    "%s: aq_set_switch_config() error %s, aq error %s\n",
4034 		    __func__, i40e_stat_str(hw, status),
4035 		    i40e_aq_str(hw, hw->aq.asq_last_status));
4036 		return (status);
4037 	}
4038 	return (0);
4039 }
4040 
4041 static int
4042 ixl_sysctl_hkey(SYSCTL_HANDLER_ARGS)
4043 {
4044 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4045 	struct i40e_hw *hw = &pf->hw;
4046 	device_t dev = pf->dev;
4047 	struct sbuf *buf;
4048 	int error = 0;
4049 	enum i40e_status_code status;
4050 	u32 reg;
4051 
4052 	struct i40e_aqc_get_set_rss_key_data key_data;
4053 
4054 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
4055 	if (!buf) {
4056 		device_printf(dev, "Could not allocate sbuf for output.\n");
4057 		return (ENOMEM);
4058 	}
4059 
4060 	bzero(&key_data, sizeof(key_data));
4061 
4062 	sbuf_cat(buf, "\n");
4063 	if (hw->mac.type == I40E_MAC_X722) {
4064 		status = i40e_aq_get_rss_key(hw, pf->vsi.vsi_num, &key_data);
4065 		if (status)
4066 			device_printf(dev, "i40e_aq_get_rss_key status %s, error %s\n",
4067 			    i40e_stat_str(hw, status), i40e_aq_str(hw, hw->aq.asq_last_status));
4068 	} else {
4069 		for (int i = 0; i < IXL_RSS_KEY_SIZE_REG; i++) {
4070 			reg = i40e_read_rx_ctl(hw, I40E_PFQF_HKEY(i));
4071 			bcopy(&reg, ((caddr_t)&key_data) + (i << 2), 4);
4072 		}
4073 	}
4074 
4075 	ixl_sbuf_print_bytes(buf, (u8 *)&key_data, sizeof(key_data), 0, true);
4076 
4077 	error = sbuf_finish(buf);
4078 	if (error)
4079 		device_printf(dev, "Error finishing sbuf: %d\n", error);
4080 	sbuf_delete(buf);
4081 
4082 	return (error);
4083 }
4084 
4085 static void
4086 ixl_sbuf_print_bytes(struct sbuf *sb, u8 *buf, int length, int label_offset, bool text)
4087 {
4088 	int i, j, k, width;
4089 	char c;
4090 
4091 	if (length < 1 || buf == NULL) return;
4092 
4093 	int byte_stride = 16;
4094 	int lines = length / byte_stride;
4095 	int rem = length % byte_stride;
4096 	if (rem > 0)
4097 		lines++;
4098 
4099 	for (i = 0; i < lines; i++) {
4100 		width = (rem > 0 && i == lines - 1)
4101 		    ? rem : byte_stride;
4102 
4103 		sbuf_printf(sb, "%4d | ", label_offset + i * byte_stride);
4104 
4105 		for (j = 0; j < width; j++)
4106 			sbuf_printf(sb, "%02x ", buf[i * byte_stride + j]);
4107 
4108 		if (width < byte_stride) {
4109 			for (k = 0; k < (byte_stride - width); k++)
4110 				sbuf_printf(sb, "   ");
4111 		}
4112 
4113 		if (!text) {
4114 			sbuf_printf(sb, "\n");
4115 			continue;
4116 		}
4117 
4118 		for (j = 0; j < width; j++) {
4119 			c = (char)buf[i * byte_stride + j];
4120 			if (c < 32 || c > 126)
4121 				sbuf_printf(sb, ".");
4122 			else
4123 				sbuf_printf(sb, "%c", c);
4124 
4125 			if (j == width - 1)
4126 				sbuf_printf(sb, "\n");
4127 		}
4128 	}
4129 }
4130 
4131 static int
4132 ixl_sysctl_hlut(SYSCTL_HANDLER_ARGS)
4133 {
4134 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4135 	struct i40e_hw *hw = &pf->hw;
4136 	device_t dev = pf->dev;
4137 	struct sbuf *buf;
4138 	int error = 0;
4139 	enum i40e_status_code status;
4140 	u8 hlut[512];
4141 	u32 reg;
4142 
4143 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
4144 	if (!buf) {
4145 		device_printf(dev, "Could not allocate sbuf for output.\n");
4146 		return (ENOMEM);
4147 	}
4148 
4149 	bzero(hlut, sizeof(hlut));
4150 	sbuf_cat(buf, "\n");
4151 	if (hw->mac.type == I40E_MAC_X722) {
4152 		status = i40e_aq_get_rss_lut(hw, pf->vsi.vsi_num, TRUE, hlut, sizeof(hlut));
4153 		if (status)
4154 			device_printf(dev, "i40e_aq_get_rss_lut status %s, error %s\n",
4155 			    i40e_stat_str(hw, status), i40e_aq_str(hw, hw->aq.asq_last_status));
4156 	} else {
4157 		for (int i = 0; i < hw->func_caps.rss_table_size >> 2; i++) {
4158 			reg = rd32(hw, I40E_PFQF_HLUT(i));
4159 			bcopy(&reg, &hlut[i << 2], 4);
4160 		}
4161 	}
4162 	ixl_sbuf_print_bytes(buf, hlut, 512, 0, false);
4163 
4164 	error = sbuf_finish(buf);
4165 	if (error)
4166 		device_printf(dev, "Error finishing sbuf: %d\n", error);
4167 	sbuf_delete(buf);
4168 
4169 	return (error);
4170 }
4171 
4172 static int
4173 ixl_sysctl_hena(SYSCTL_HANDLER_ARGS)
4174 {
4175 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4176 	struct i40e_hw *hw = &pf->hw;
4177 	u64 hena;
4178 
4179 	hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
4180 	    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
4181 
4182 	return sysctl_handle_long(oidp, NULL, hena, req);
4183 }
4184 
4185 /*
4186  * Sysctl to disable firmware's link management
4187  *
4188  * 1 - Disable link management on this port
4189  * 0 - Re-enable link management
4190  *
4191  * On normal NVMs, firmware manages link by default.
4192  */
4193 static int
4194 ixl_sysctl_fw_link_management(SYSCTL_HANDLER_ARGS)
4195 {
4196 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4197 	struct i40e_hw *hw = &pf->hw;
4198 	device_t dev = pf->dev;
4199 	int requested_mode = -1;
4200 	enum i40e_status_code status = 0;
4201 	int error = 0;
4202 
4203 	/* Read in new mode */
4204 	error = sysctl_handle_int(oidp, &requested_mode, 0, req);
4205 	if ((error) || (req->newptr == NULL))
4206 		return (error);
4207 	/* Check for sane value */
4208 	if (requested_mode < 0 || requested_mode > 1) {
4209 		device_printf(dev, "Valid modes are 0 or 1\n");
4210 		return (EINVAL);
4211 	}
4212 
4213 	/* Set new mode */
4214 	status = i40e_aq_set_phy_debug(hw, !!(requested_mode) << 4, NULL);
4215 	if (status) {
4216 		device_printf(dev,
4217 		    "%s: Error setting new phy debug mode %s,"
4218 		    " aq error: %s\n", __func__, i40e_stat_str(hw, status),
4219 		    i40e_aq_str(hw, hw->aq.asq_last_status));
4220 		return (EIO);
4221 	}
4222 
4223 	return (0);
4224 }
4225 
4226 /*
4227  * Read some diagnostic data from a (Q)SFP+ module
4228  *
4229  *             SFP A2   QSFP Lower Page
4230  * Temperature 96-97	22-23
4231  * Vcc         98-99    26-27
4232  * TX power    102-103  34-35..40-41
4233  * RX power    104-105  50-51..56-57
4234  */
4235 static int
4236 ixl_sysctl_read_i2c_diag_data(SYSCTL_HANDLER_ARGS)
4237 {
4238 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4239 	device_t dev = pf->dev;
4240 	struct sbuf *sbuf;
4241 	int error = 0;
4242 	u8 output;
4243 
4244 	if (req->oldptr == NULL) {
4245 		error = SYSCTL_OUT(req, 0, 128);
4246 		return (0);
4247 	}
4248 
4249 	error = pf->read_i2c_byte(pf, 0, 0xA0, &output);
4250 	if (error) {
4251 		device_printf(dev, "Error reading from i2c\n");
4252 		return (error);
4253 	}
4254 
4255 	/* 0x3 for SFP; 0xD/0x11 for QSFP+/QSFP28 */
4256 	if (output == 0x3) {
4257 		/*
4258 		 * Check for:
4259 		 * - Internally calibrated data
4260 		 * - Diagnostic monitoring is implemented
4261 		 */
4262 		pf->read_i2c_byte(pf, 92, 0xA0, &output);
4263 		if (!(output & 0x60)) {
4264 			device_printf(dev, "Module doesn't support diagnostics: %02X\n", output);
4265 			return (0);
4266 		}
4267 
4268 		sbuf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
4269 
4270 		for (u8 offset = 96; offset < 100; offset++) {
4271 			pf->read_i2c_byte(pf, offset, 0xA2, &output);
4272 			sbuf_printf(sbuf, "%02X ", output);
4273 		}
4274 		for (u8 offset = 102; offset < 106; offset++) {
4275 			pf->read_i2c_byte(pf, offset, 0xA2, &output);
4276 			sbuf_printf(sbuf, "%02X ", output);
4277 		}
4278 	} else if (output == 0xD || output == 0x11) {
4279 		/*
4280 		 * QSFP+ modules are always internally calibrated, and must indicate
4281 		 * what types of diagnostic monitoring are implemented
4282 		 */
4283 		sbuf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
4284 
4285 		for (u8 offset = 22; offset < 24; offset++) {
4286 			pf->read_i2c_byte(pf, offset, 0xA0, &output);
4287 			sbuf_printf(sbuf, "%02X ", output);
4288 		}
4289 		for (u8 offset = 26; offset < 28; offset++) {
4290 			pf->read_i2c_byte(pf, offset, 0xA0, &output);
4291 			sbuf_printf(sbuf, "%02X ", output);
4292 		}
4293 		/* Read the data from the first lane */
4294 		for (u8 offset = 34; offset < 36; offset++) {
4295 			pf->read_i2c_byte(pf, offset, 0xA0, &output);
4296 			sbuf_printf(sbuf, "%02X ", output);
4297 		}
4298 		for (u8 offset = 50; offset < 52; offset++) {
4299 			pf->read_i2c_byte(pf, offset, 0xA0, &output);
4300 			sbuf_printf(sbuf, "%02X ", output);
4301 		}
4302 	} else {
4303 		device_printf(dev, "Module is not SFP/SFP+/SFP28/QSFP+ (%02X)\n", output);
4304 		return (0);
4305 	}
4306 
4307 	sbuf_finish(sbuf);
4308 	sbuf_delete(sbuf);
4309 
4310 	return (0);
4311 }
4312 
4313 /*
4314  * Sysctl to read a byte from I2C bus.
4315  *
4316  * Input: 32-bit value:
4317  * 	bits 0-7:   device address (0xA0 or 0xA2)
4318  * 	bits 8-15:  offset (0-255)
4319  *	bits 16-31: unused
4320  * Output: 8-bit value read
4321  */
4322 static int
4323 ixl_sysctl_read_i2c_byte(SYSCTL_HANDLER_ARGS)
4324 {
4325 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4326 	device_t dev = pf->dev;
4327 	int input = -1, error = 0;
4328 	u8 dev_addr, offset, output;
4329 
4330 	/* Read in I2C read parameters */
4331 	error = sysctl_handle_int(oidp, &input, 0, req);
4332 	if ((error) || (req->newptr == NULL))
4333 		return (error);
4334 	/* Validate device address */
4335 	dev_addr = input & 0xFF;
4336 	if (dev_addr != 0xA0 && dev_addr != 0xA2) {
4337 		return (EINVAL);
4338 	}
4339 	offset = (input >> 8) & 0xFF;
4340 
4341 	error = pf->read_i2c_byte(pf, offset, dev_addr, &output);
4342 	if (error)
4343 		return (error);
4344 
4345 	device_printf(dev, "%02X\n", output);
4346 	return (0);
4347 }
4348 
4349 /*
4350  * Sysctl to write a byte to the I2C bus.
4351  *
4352  * Input: 32-bit value:
4353  * 	bits 0-7:   device address (0xA0 or 0xA2)
4354  * 	bits 8-15:  offset (0-255)
4355  *	bits 16-23: value to write
4356  *	bits 24-31: unused
4357  * Output: 8-bit value written
4358  */
4359 static int
4360 ixl_sysctl_write_i2c_byte(SYSCTL_HANDLER_ARGS)
4361 {
4362 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4363 	device_t dev = pf->dev;
4364 	int input = -1, error = 0;
4365 	u8 dev_addr, offset, value;
4366 
4367 	/* Read in I2C write parameters */
4368 	error = sysctl_handle_int(oidp, &input, 0, req);
4369 	if ((error) || (req->newptr == NULL))
4370 		return (error);
4371 	/* Validate device address */
4372 	dev_addr = input & 0xFF;
4373 	if (dev_addr != 0xA0 && dev_addr != 0xA2) {
4374 		return (EINVAL);
4375 	}
4376 	offset = (input >> 8) & 0xFF;
4377 	value = (input >> 16) & 0xFF;
4378 
4379 	error = pf->write_i2c_byte(pf, offset, dev_addr, value);
4380 	if (error)
4381 		return (error);
4382 
4383 	device_printf(dev, "%02X written\n", value);
4384 	return (0);
4385 }
4386 
4387 static int
4388 ixl_get_fec_config(struct ixl_pf *pf, struct i40e_aq_get_phy_abilities_resp *abilities,
4389     u8 bit_pos, int *is_set)
4390 {
4391 	device_t dev = pf->dev;
4392 	struct i40e_hw *hw = &pf->hw;
4393 	enum i40e_status_code status;
4394 
4395 	if (IXL_PF_IN_RECOVERY_MODE(pf))
4396 		return (EIO);
4397 
4398 	status = i40e_aq_get_phy_capabilities(hw,
4399 	    FALSE, FALSE, abilities, NULL);
4400 	if (status) {
4401 		device_printf(dev,
4402 		    "%s: i40e_aq_get_phy_capabilities() status %s, aq error %s\n",
4403 		    __func__, i40e_stat_str(hw, status),
4404 		    i40e_aq_str(hw, hw->aq.asq_last_status));
4405 		return (EIO);
4406 	}
4407 
4408 	*is_set = !!(abilities->fec_cfg_curr_mod_ext_info & bit_pos);
4409 	return (0);
4410 }
4411 
4412 static int
4413 ixl_set_fec_config(struct ixl_pf *pf, struct i40e_aq_get_phy_abilities_resp *abilities,
4414     u8 bit_pos, int set)
4415 {
4416 	device_t dev = pf->dev;
4417 	struct i40e_hw *hw = &pf->hw;
4418 	struct i40e_aq_set_phy_config config;
4419 	enum i40e_status_code status;
4420 
4421 	/* Set new PHY config */
4422 	memset(&config, 0, sizeof(config));
4423 	config.fec_config = abilities->fec_cfg_curr_mod_ext_info & ~(bit_pos);
4424 	if (set)
4425 		config.fec_config |= bit_pos;
4426 	if (config.fec_config != abilities->fec_cfg_curr_mod_ext_info) {
4427 		config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
4428 		config.phy_type = abilities->phy_type;
4429 		config.phy_type_ext = abilities->phy_type_ext;
4430 		config.link_speed = abilities->link_speed;
4431 		config.eee_capability = abilities->eee_capability;
4432 		config.eeer = abilities->eeer_val;
4433 		config.low_power_ctrl = abilities->d3_lpan;
4434 		status = i40e_aq_set_phy_config(hw, &config, NULL);
4435 
4436 		if (status) {
4437 			device_printf(dev,
4438 			    "%s: i40e_aq_set_phy_config() status %s, aq error %s\n",
4439 			    __func__, i40e_stat_str(hw, status),
4440 			    i40e_aq_str(hw, hw->aq.asq_last_status));
4441 			return (EIO);
4442 		}
4443 	}
4444 
4445 	return (0);
4446 }
4447 
4448 static int
4449 ixl_sysctl_fec_fc_ability(SYSCTL_HANDLER_ARGS)
4450 {
4451 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4452 	int mode, error = 0;
4453 
4454 	struct i40e_aq_get_phy_abilities_resp abilities;
4455 	error = ixl_get_fec_config(pf, &abilities, I40E_AQ_ENABLE_FEC_KR, &mode);
4456 	if (error)
4457 		return (error);
4458 	/* Read in new mode */
4459 	error = sysctl_handle_int(oidp, &mode, 0, req);
4460 	if ((error) || (req->newptr == NULL))
4461 		return (error);
4462 
4463 	return ixl_set_fec_config(pf, &abilities, I40E_AQ_SET_FEC_ABILITY_KR, !!(mode));
4464 }
4465 
4466 static int
4467 ixl_sysctl_fec_rs_ability(SYSCTL_HANDLER_ARGS)
4468 {
4469 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4470 	int mode, error = 0;
4471 
4472 	struct i40e_aq_get_phy_abilities_resp abilities;
4473 	error = ixl_get_fec_config(pf, &abilities, I40E_AQ_ENABLE_FEC_RS, &mode);
4474 	if (error)
4475 		return (error);
4476 	/* Read in new mode */
4477 	error = sysctl_handle_int(oidp, &mode, 0, req);
4478 	if ((error) || (req->newptr == NULL))
4479 		return (error);
4480 
4481 	return ixl_set_fec_config(pf, &abilities, I40E_AQ_SET_FEC_ABILITY_RS, !!(mode));
4482 }
4483 
4484 static int
4485 ixl_sysctl_fec_fc_request(SYSCTL_HANDLER_ARGS)
4486 {
4487 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4488 	int mode, error = 0;
4489 
4490 	struct i40e_aq_get_phy_abilities_resp abilities;
4491 	error = ixl_get_fec_config(pf, &abilities, I40E_AQ_REQUEST_FEC_KR, &mode);
4492 	if (error)
4493 		return (error);
4494 	/* Read in new mode */
4495 	error = sysctl_handle_int(oidp, &mode, 0, req);
4496 	if ((error) || (req->newptr == NULL))
4497 		return (error);
4498 
4499 	return ixl_set_fec_config(pf, &abilities, I40E_AQ_SET_FEC_REQUEST_KR, !!(mode));
4500 }
4501 
4502 static int
4503 ixl_sysctl_fec_rs_request(SYSCTL_HANDLER_ARGS)
4504 {
4505 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4506 	int mode, error = 0;
4507 
4508 	struct i40e_aq_get_phy_abilities_resp abilities;
4509 	error = ixl_get_fec_config(pf, &abilities, I40E_AQ_REQUEST_FEC_RS, &mode);
4510 	if (error)
4511 		return (error);
4512 	/* Read in new mode */
4513 	error = sysctl_handle_int(oidp, &mode, 0, req);
4514 	if ((error) || (req->newptr == NULL))
4515 		return (error);
4516 
4517 	return ixl_set_fec_config(pf, &abilities, I40E_AQ_SET_FEC_REQUEST_RS, !!(mode));
4518 }
4519 
4520 static int
4521 ixl_sysctl_fec_auto_enable(SYSCTL_HANDLER_ARGS)
4522 {
4523 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4524 	int mode, error = 0;
4525 
4526 	struct i40e_aq_get_phy_abilities_resp abilities;
4527 	error = ixl_get_fec_config(pf, &abilities, I40E_AQ_ENABLE_FEC_AUTO, &mode);
4528 	if (error)
4529 		return (error);
4530 	/* Read in new mode */
4531 	error = sysctl_handle_int(oidp, &mode, 0, req);
4532 	if ((error) || (req->newptr == NULL))
4533 		return (error);
4534 
4535 	return ixl_set_fec_config(pf, &abilities, I40E_AQ_SET_FEC_AUTO, !!(mode));
4536 }
4537 
4538 static int
4539 ixl_sysctl_dump_debug_data(SYSCTL_HANDLER_ARGS)
4540 {
4541 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4542 	struct i40e_hw *hw = &pf->hw;
4543 	device_t dev = pf->dev;
4544 	struct sbuf *buf;
4545 	int error = 0;
4546 	enum i40e_status_code status;
4547 
4548 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
4549 	if (!buf) {
4550 		device_printf(dev, "Could not allocate sbuf for output.\n");
4551 		return (ENOMEM);
4552 	}
4553 
4554 	u8 *final_buff;
4555 	/* This amount is only necessary if reading the entire cluster into memory */
4556 #define IXL_FINAL_BUFF_SIZE	(1280 * 1024)
4557 	final_buff = malloc(IXL_FINAL_BUFF_SIZE, M_IXL, M_NOWAIT);
4558 	if (final_buff == NULL) {
4559 		device_printf(dev, "Could not allocate memory for output.\n");
4560 		goto out;
4561 	}
4562 	int final_buff_len = 0;
4563 
4564 	u8 cluster_id = 1;
4565 	bool more = true;
4566 
4567 	u8 dump_buf[4096];
4568 	u16 curr_buff_size = 4096;
4569 	u8 curr_next_table = 0;
4570 	u32 curr_next_index = 0;
4571 
4572 	u16 ret_buff_size;
4573 	u8 ret_next_table;
4574 	u32 ret_next_index;
4575 
4576 	sbuf_cat(buf, "\n");
4577 
4578 	while (more) {
4579 		status = i40e_aq_debug_dump(hw, cluster_id, curr_next_table, curr_next_index, curr_buff_size,
4580 		    dump_buf, &ret_buff_size, &ret_next_table, &ret_next_index, NULL);
4581 		if (status) {
4582 			device_printf(dev, "i40e_aq_debug_dump status %s, error %s\n",
4583 			    i40e_stat_str(hw, status), i40e_aq_str(hw, hw->aq.asq_last_status));
4584 			goto free_out;
4585 		}
4586 
4587 		/* copy info out of temp buffer */
4588 		bcopy(dump_buf, (caddr_t)final_buff + final_buff_len, ret_buff_size);
4589 		final_buff_len += ret_buff_size;
4590 
4591 		if (ret_next_table != curr_next_table) {
4592 			/* We're done with the current table; we can dump out read data. */
4593 			sbuf_printf(buf, "%d:", curr_next_table);
4594 			int bytes_printed = 0;
4595 			while (bytes_printed <= final_buff_len) {
4596 				sbuf_printf(buf, "%16D", ((caddr_t)final_buff + bytes_printed), "");
4597 				bytes_printed += 16;
4598 			}
4599 				sbuf_cat(buf, "\n");
4600 
4601 			/* The entire cluster has been read; we're finished */
4602 			if (ret_next_table == 0xFF)
4603 				break;
4604 
4605 			/* Otherwise clear the output buffer and continue reading */
4606 			bzero(final_buff, IXL_FINAL_BUFF_SIZE);
4607 			final_buff_len = 0;
4608 		}
4609 
4610 		if (ret_next_index == 0xFFFFFFFF)
4611 			ret_next_index = 0;
4612 
4613 		bzero(dump_buf, sizeof(dump_buf));
4614 		curr_next_table = ret_next_table;
4615 		curr_next_index = ret_next_index;
4616 	}
4617 
4618 free_out:
4619 	free(final_buff, M_IXL);
4620 out:
4621 	error = sbuf_finish(buf);
4622 	if (error)
4623 		device_printf(dev, "Error finishing sbuf: %d\n", error);
4624 	sbuf_delete(buf);
4625 
4626 	return (error);
4627 }
4628 
4629 static int
4630 ixl_start_fw_lldp(struct ixl_pf *pf)
4631 {
4632 	struct i40e_hw *hw = &pf->hw;
4633 	enum i40e_status_code status;
4634 
4635 	status = i40e_aq_start_lldp(hw, false, NULL);
4636 	if (status != I40E_SUCCESS) {
4637 		switch (hw->aq.asq_last_status) {
4638 		case I40E_AQ_RC_EEXIST:
4639 			device_printf(pf->dev,
4640 			    "FW LLDP agent is already running\n");
4641 			break;
4642 		case I40E_AQ_RC_EPERM:
4643 			device_printf(pf->dev,
4644 			    "Device configuration forbids SW from starting "
4645 			    "the LLDP agent. Set the \"LLDP Agent\" UEFI HII "
4646 			    "attribute to \"Enabled\" to use this sysctl\n");
4647 			return (EINVAL);
4648 		default:
4649 			device_printf(pf->dev,
4650 			    "Starting FW LLDP agent failed: error: %s, %s\n",
4651 			    i40e_stat_str(hw, status),
4652 			    i40e_aq_str(hw, hw->aq.asq_last_status));
4653 			return (EINVAL);
4654 		}
4655 	}
4656 
4657 	ixl_clear_state(&pf->state, IXL_STATE_FW_LLDP_DISABLED);
4658 	return (0);
4659 }
4660 
4661 static int
4662 ixl_stop_fw_lldp(struct ixl_pf *pf)
4663 {
4664 	struct i40e_hw *hw = &pf->hw;
4665 	device_t dev = pf->dev;
4666 	enum i40e_status_code status;
4667 
4668 	if (hw->func_caps.npar_enable != 0) {
4669 		device_printf(dev,
4670 		    "Disabling FW LLDP agent is not supported on this device\n");
4671 		return (EINVAL);
4672 	}
4673 
4674 	if ((hw->flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE) == 0) {
4675 		device_printf(dev,
4676 		    "Disabling FW LLDP agent is not supported in this FW version. Please update FW to enable this feature.\n");
4677 		return (EINVAL);
4678 	}
4679 
4680 	status = i40e_aq_stop_lldp(hw, true, false, NULL);
4681 	if (status != I40E_SUCCESS) {
4682 		if (hw->aq.asq_last_status != I40E_AQ_RC_EPERM) {
4683 			device_printf(dev,
4684 			    "Disabling FW LLDP agent failed: error: %s, %s\n",
4685 			    i40e_stat_str(hw, status),
4686 			    i40e_aq_str(hw, hw->aq.asq_last_status));
4687 			return (EINVAL);
4688 		}
4689 
4690 		device_printf(dev, "FW LLDP agent is already stopped\n");
4691 	}
4692 
4693 	i40e_aq_set_dcb_parameters(hw, true, NULL);
4694 	ixl_set_state(&pf->state, IXL_STATE_FW_LLDP_DISABLED);
4695 	return (0);
4696 }
4697 
4698 static int
4699 ixl_sysctl_fw_lldp(SYSCTL_HANDLER_ARGS)
4700 {
4701 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4702 	int state, new_state, error = 0;
4703 
4704 	state = new_state = !ixl_test_state(&pf->state, IXL_STATE_FW_LLDP_DISABLED);
4705 
4706 	/* Read in new mode */
4707 	error = sysctl_handle_int(oidp, &new_state, 0, req);
4708 	if ((error) || (req->newptr == NULL))
4709 		return (error);
4710 
4711 	/* Already in requested state */
4712 	if (new_state == state)
4713 		return (error);
4714 
4715 	if (new_state == 0)
4716 		return ixl_stop_fw_lldp(pf);
4717 
4718 	return ixl_start_fw_lldp(pf);
4719 }
4720 
4721 static int
4722 ixl_sysctl_eee_enable(SYSCTL_HANDLER_ARGS)
4723 {
4724 	struct ixl_pf         *pf = (struct ixl_pf *)arg1;
4725 	int                   state, new_state;
4726 	int                   sysctl_handle_status = 0;
4727 	enum i40e_status_code cmd_status;
4728 
4729 	/* Init states' values */
4730 	state = new_state = ixl_test_state(&pf->state, IXL_STATE_EEE_ENABLED);
4731 
4732 	/* Get requested mode */
4733 	sysctl_handle_status = sysctl_handle_int(oidp, &new_state, 0, req);
4734 	if ((sysctl_handle_status) || (req->newptr == NULL))
4735 		return (sysctl_handle_status);
4736 
4737 	/* Check if state has changed */
4738 	if (new_state == state)
4739 		return (0);
4740 
4741 	/* Set new state */
4742 	cmd_status = i40e_enable_eee(&pf->hw, (bool)(!!new_state));
4743 
4744 	/* Save new state or report error */
4745 	if (!cmd_status) {
4746 		if (new_state == 0)
4747 			ixl_clear_state(&pf->state, IXL_STATE_EEE_ENABLED);
4748 		else
4749 			ixl_set_state(&pf->state, IXL_STATE_EEE_ENABLED);
4750 	} else if (cmd_status == I40E_ERR_CONFIG)
4751 		return (EPERM);
4752 	else
4753 		return (EIO);
4754 
4755 	return (0);
4756 }
4757 
4758 static int
4759 ixl_sysctl_set_link_active(SYSCTL_HANDLER_ARGS)
4760 {
4761 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4762 	int error, state;
4763 
4764 	state = ixl_test_state(&pf->state, IXL_STATE_LINK_ACTIVE_ON_DOWN);
4765 
4766 	error = sysctl_handle_int(oidp, &state, 0, req);
4767 	if ((error) || (req->newptr == NULL))
4768 		return (error);
4769 
4770 	if (state == 0)
4771 		ixl_clear_state(&pf->state, IXL_STATE_LINK_ACTIVE_ON_DOWN);
4772 	else
4773 		ixl_set_state(&pf->state, IXL_STATE_LINK_ACTIVE_ON_DOWN);
4774 
4775 	return (0);
4776 }
4777 
4778 
4779 int
4780 ixl_attach_get_link_status(struct ixl_pf *pf)
4781 {
4782 	struct i40e_hw *hw = &pf->hw;
4783 	device_t dev = pf->dev;
4784 	enum i40e_status_code status;
4785 
4786 	if (((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver < 33)) ||
4787 	    (hw->aq.fw_maj_ver < 4)) {
4788 		i40e_msec_delay(75);
4789 		status = i40e_aq_set_link_restart_an(hw, TRUE, NULL);
4790 		if (status != I40E_SUCCESS) {
4791 			device_printf(dev,
4792 			    "%s link restart failed status: %s, aq_err=%s\n",
4793 			    __func__, i40e_stat_str(hw, status),
4794 			    i40e_aq_str(hw, hw->aq.asq_last_status));
4795 			return (EINVAL);
4796 		}
4797 	}
4798 
4799 	/* Determine link state */
4800 	hw->phy.get_link_info = TRUE;
4801 	status = i40e_get_link_status(hw, &pf->link_up);
4802 	if (status != I40E_SUCCESS) {
4803 		device_printf(dev,
4804 		    "%s get link status, status: %s aq_err=%s\n",
4805 		    __func__, i40e_stat_str(hw, status),
4806 		    i40e_aq_str(hw, hw->aq.asq_last_status));
4807 		/*
4808 		 * Most probably FW has not finished configuring PHY.
4809 		 * Retry periodically in a timer callback.
4810 		 */
4811 		ixl_set_state(&pf->state, IXL_STATE_LINK_POLLING);
4812 		pf->link_poll_start = getsbinuptime();
4813 		return (EAGAIN);
4814 	}
4815  	ixl_dbg_link(pf, "%s link_up: %d\n", __func__, pf->link_up);
4816 
4817 	/* Flow Control mode not set by user, read current FW settings */
4818 	if (pf->fc == -1)
4819 		pf->fc = hw->fc.current_mode;
4820 
4821 	return (0);
4822 }
4823 
4824 static int
4825 ixl_sysctl_do_pf_reset(SYSCTL_HANDLER_ARGS)
4826 {
4827 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4828 	int requested = 0, error = 0;
4829 
4830 	/* Read in new mode */
4831 	error = sysctl_handle_int(oidp, &requested, 0, req);
4832 	if ((error) || (req->newptr == NULL))
4833 		return (error);
4834 
4835 	/* Initiate the PF reset later in the admin task */
4836 	ixl_set_state(&pf->state, IXL_STATE_PF_RESET_REQ);
4837 
4838 	return (error);
4839 }
4840 
4841 static int
4842 ixl_sysctl_do_core_reset(SYSCTL_HANDLER_ARGS)
4843 {
4844 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4845 	struct i40e_hw *hw = &pf->hw;
4846 	int requested = 0, error = 0;
4847 
4848 	/* Read in new mode */
4849 	error = sysctl_handle_int(oidp, &requested, 0, req);
4850 	if ((error) || (req->newptr == NULL))
4851 		return (error);
4852 
4853 	wr32(hw, I40E_GLGEN_RTRIG, I40E_GLGEN_RTRIG_CORER_MASK);
4854 
4855 	return (error);
4856 }
4857 
4858 static int
4859 ixl_sysctl_do_global_reset(SYSCTL_HANDLER_ARGS)
4860 {
4861 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4862 	struct i40e_hw *hw = &pf->hw;
4863 	int requested = 0, error = 0;
4864 
4865 	/* Read in new mode */
4866 	error = sysctl_handle_int(oidp, &requested, 0, req);
4867 	if ((error) || (req->newptr == NULL))
4868 		return (error);
4869 
4870 	wr32(hw, I40E_GLGEN_RTRIG, I40E_GLGEN_RTRIG_GLOBR_MASK);
4871 
4872 	return (error);
4873 }
4874 
4875 /*
4876  * Print out mapping of TX queue indexes and Rx queue indexes
4877  * to MSI-X vectors.
4878  */
4879 static int
4880 ixl_sysctl_queue_interrupt_table(SYSCTL_HANDLER_ARGS)
4881 {
4882 	struct ixl_pf *pf = (struct ixl_pf *)arg1;
4883 	struct ixl_vsi *vsi = &pf->vsi;
4884 	device_t dev = pf->dev;
4885 	struct sbuf *buf;
4886 	int error = 0;
4887 
4888 	struct ixl_rx_queue *rx_que = vsi->rx_queues;
4889 	struct ixl_tx_queue *tx_que = vsi->tx_queues;
4890 
4891 	buf = sbuf_new_for_sysctl(NULL, NULL, 128, req);
4892 	if (!buf) {
4893 		device_printf(dev, "Could not allocate sbuf for output.\n");
4894 		return (ENOMEM);
4895 	}
4896 
4897 	sbuf_cat(buf, "\n");
4898 	for (int i = 0; i < vsi->num_rx_queues; i++) {
4899 		rx_que = &vsi->rx_queues[i];
4900 		sbuf_printf(buf, "(rxq %3d): %d\n", i, rx_que->msix);
4901 	}
4902 	for (int i = 0; i < vsi->num_tx_queues; i++) {
4903 		tx_que = &vsi->tx_queues[i];
4904 		sbuf_printf(buf, "(txq %3d): %d\n", i, tx_que->msix);
4905 	}
4906 
4907 	error = sbuf_finish(buf);
4908 	if (error)
4909 		device_printf(dev, "Error finishing sbuf: %d\n", error);
4910 	sbuf_delete(buf);
4911 
4912 	return (error);
4913 }
4914