2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include "ena_sysctl.h"
35 static void ena_sysctl_add_wd(struct ena_adapter *);
36 static void ena_sysctl_add_stats(struct ena_adapter *);
37 static void ena_sysctl_add_eni_metrics(struct ena_adapter *);
38 static void ena_sysctl_add_tuneables(struct ena_adapter *);
39 static int ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS);
40 static int ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS);
41 static int ena_sysctl_io_queues_nb(SYSCTL_HANDLER_ARGS);
42 static int ena_sysctl_eni_metrics_interval(SYSCTL_HANDLER_ARGS);
44 /* Limit max ENI sample rate to be an hour. */
45 #define ENI_METRICS_MAX_SAMPLE_INTERVAL 3600
47 static SYSCTL_NODE(_hw, OID_AUTO, ena, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
48 "ENA driver parameters");
51 * Logging level for changing verbosity of the output
53 int ena_log_level = ENA_ALERT | ENA_WARNING;
54 SYSCTL_INT(_hw_ena, OID_AUTO, log_level, CTLFLAG_RWTUN,
55 &ena_log_level, 0, "Logging level indicating verbosity of the logs");
57 SYSCTL_CONST_STRING(_hw_ena, OID_AUTO, driver_version, CTLFLAG_RD,
58 DRV_MODULE_VERSION, "ENA driver version");
61 * Use 9k mbufs for the Rx buffers. Default to 0 (use page size mbufs instead).
62 * Using 9k mbufs in low memory conditions might cause allocation to take a lot
63 * of time and lead to the OS instability as it needs to look for the contiguous
65 * However, page size mbufs has a bit smaller throughput than 9k mbufs, so if
66 * the network performance is the priority, the 9k mbufs can be used.
68 int ena_enable_9k_mbufs = 0;
69 SYSCTL_INT(_hw_ena, OID_AUTO, enable_9k_mbufs, CTLFLAG_RDTUN,
70 &ena_enable_9k_mbufs, 0, "Use 9 kB mbufs for Rx descriptors");
73 ena_sysctl_add_nodes(struct ena_adapter *adapter)
75 ena_sysctl_add_wd(adapter);
76 ena_sysctl_add_stats(adapter);
77 ena_sysctl_add_eni_metrics(adapter);
78 ena_sysctl_add_tuneables(adapter);
82 ena_sysctl_add_wd(struct ena_adapter *adapter)
86 struct sysctl_ctx_list *ctx;
87 struct sysctl_oid *tree;
88 struct sysctl_oid_list *child;
92 ctx = device_get_sysctl_ctx(dev);
93 tree = device_get_sysctl_tree(dev);
94 child = SYSCTL_CHILDREN(tree);
96 /* Sysctl calls for Watchdog service */
97 SYSCTL_ADD_INT(ctx, child, OID_AUTO, "wd_active",
98 CTLFLAG_RWTUN, &adapter->wd_active, 0,
99 "Watchdog is active");
101 SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "keep_alive_timeout",
102 CTLFLAG_RWTUN, &adapter->keep_alive_timeout,
103 "Timeout for Keep Alive messages");
105 SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "missing_tx_timeout",
106 CTLFLAG_RWTUN, &adapter->missing_tx_timeout,
107 "Timeout for TX completion");
109 SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_max_queues",
110 CTLFLAG_RWTUN, &adapter->missing_tx_max_queues, 0,
111 "Number of TX queues to check per run");
113 SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_threshold",
114 CTLFLAG_RWTUN, &adapter->missing_tx_threshold, 0,
115 "Max number of timeouted packets");
119 ena_sysctl_add_stats(struct ena_adapter *adapter)
123 struct ena_ring *tx_ring;
124 struct ena_ring *rx_ring;
126 struct ena_hw_stats *hw_stats;
127 struct ena_stats_dev *dev_stats;
128 struct ena_stats_tx *tx_stats;
129 struct ena_stats_rx *rx_stats;
130 struct ena_com_stats_admin *admin_stats;
132 struct sysctl_ctx_list *ctx;
133 struct sysctl_oid *tree;
134 struct sysctl_oid_list *child;
136 struct sysctl_oid *queue_node, *tx_node, *rx_node, *hw_node;
137 struct sysctl_oid *admin_node;
138 struct sysctl_oid_list *queue_list, *tx_list, *rx_list, *hw_list;
139 struct sysctl_oid_list *admin_list;
141 #define QUEUE_NAME_LEN 32
142 char namebuf[QUEUE_NAME_LEN];
147 ctx = device_get_sysctl_ctx(dev);
148 tree = device_get_sysctl_tree(dev);
149 child = SYSCTL_CHILDREN(tree);
151 tx_ring = adapter->tx_ring;
152 rx_ring = adapter->rx_ring;
154 hw_stats = &adapter->hw_stats;
155 dev_stats = &adapter->dev_stats;
156 admin_stats = &adapter->ena_dev->admin_queue.stats;
158 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "wd_expired",
159 CTLFLAG_RD, &dev_stats->wd_expired,
160 "Watchdog expiry count");
161 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_up",
162 CTLFLAG_RD, &dev_stats->interface_up,
163 "Network interface up count");
164 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_down",
165 CTLFLAG_RD, &dev_stats->interface_down,
166 "Network interface down count");
167 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "admin_q_pause",
168 CTLFLAG_RD, &dev_stats->admin_q_pause,
169 "Admin queue pauses");
171 for (i = 0; i < adapter->num_io_queues; ++i, ++tx_ring, ++rx_ring) {
172 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
174 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO,
175 namebuf, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Queue Name");
176 queue_list = SYSCTL_CHILDREN(queue_node);
178 /* TX specific stats */
179 tx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
180 "tx_ring", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "TX ring");
181 tx_list = SYSCTL_CHILDREN(tx_node);
183 tx_stats = &tx_ring->tx_stats;
185 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
187 &tx_stats->cnt, "Packets sent");
188 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
190 &tx_stats->bytes, "Bytes sent");
191 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
192 "prepare_ctx_err", CTLFLAG_RD,
193 &tx_stats->prepare_ctx_err,
194 "TX buffer preparation failures");
195 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
196 "dma_mapping_err", CTLFLAG_RD,
197 &tx_stats->dma_mapping_err, "DMA mapping failures");
198 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
199 "doorbells", CTLFLAG_RD,
200 &tx_stats->doorbells, "Queue doorbells");
201 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
202 "missing_tx_comp", CTLFLAG_RD,
203 &tx_stats->missing_tx_comp, "TX completions missed");
204 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
205 "bad_req_id", CTLFLAG_RD,
206 &tx_stats->bad_req_id, "Bad request id count");
207 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
208 "mbuf_collapses", CTLFLAG_RD,
210 "Mbuf collapse count");
211 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
212 "mbuf_collapse_err", CTLFLAG_RD,
213 &tx_stats->collapse_err,
214 "Mbuf collapse failures");
215 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
216 "queue_wakeups", CTLFLAG_RD,
217 &tx_stats->queue_wakeup, "Queue wakeups");
218 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
219 "queue_stops", CTLFLAG_RD,
220 &tx_stats->queue_stop, "Queue stops");
221 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
222 "llq_buffer_copy", CTLFLAG_RD,
223 &tx_stats->llq_buffer_copy,
224 "Header copies for llq transaction");
226 /* RX specific stats */
227 rx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
228 "rx_ring", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "RX ring");
229 rx_list = SYSCTL_CHILDREN(rx_node);
231 rx_stats = &rx_ring->rx_stats;
233 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
235 &rx_stats->cnt, "Packets received");
236 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
238 &rx_stats->bytes, "Bytes received");
239 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
240 "refil_partial", CTLFLAG_RD,
241 &rx_stats->refil_partial, "Partial refilled mbufs");
242 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
243 "bad_csum", CTLFLAG_RD,
244 &rx_stats->bad_csum, "Bad RX checksum");
245 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
246 "mbuf_alloc_fail", CTLFLAG_RD,
247 &rx_stats->mbuf_alloc_fail, "Failed mbuf allocs");
248 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
249 "mjum_alloc_fail", CTLFLAG_RD,
250 &rx_stats->mjum_alloc_fail, "Failed jumbo mbuf allocs");
251 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
252 "dma_mapping_err", CTLFLAG_RD,
253 &rx_stats->dma_mapping_err, "DMA mapping errors");
254 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
255 "bad_desc_num", CTLFLAG_RD,
256 &rx_stats->bad_desc_num, "Bad descriptor count");
257 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
258 "bad_req_id", CTLFLAG_RD,
259 &rx_stats->bad_req_id, "Bad request id count");
260 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
261 "empty_rx_ring", CTLFLAG_RD,
262 &rx_stats->empty_rx_ring, "RX descriptors depletion count");
265 /* Stats read from device */
266 hw_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "hw_stats",
267 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Statistics from hardware");
268 hw_list = SYSCTL_CHILDREN(hw_node);
270 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_packets", CTLFLAG_RD,
271 &hw_stats->rx_packets, "Packets received");
272 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_packets", CTLFLAG_RD,
273 &hw_stats->tx_packets, "Packets transmitted");
274 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_bytes", CTLFLAG_RD,
275 &hw_stats->rx_bytes, "Bytes received");
276 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_bytes", CTLFLAG_RD,
277 &hw_stats->tx_bytes, "Bytes transmitted");
278 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_drops", CTLFLAG_RD,
279 &hw_stats->rx_drops, "Receive packet drops");
280 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_drops", CTLFLAG_RD,
281 &hw_stats->tx_drops, "Transmit packet drops");
283 /* ENA Admin queue stats */
284 admin_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "admin_stats",
285 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ENA Admin Queue statistics");
286 admin_list = SYSCTL_CHILDREN(admin_node);
288 SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "aborted_cmd", CTLFLAG_RD,
289 &admin_stats->aborted_cmd, 0, "Aborted commands");
290 SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "sumbitted_cmd", CTLFLAG_RD,
291 &admin_stats->submitted_cmd, 0, "Submitted commands");
292 SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "completed_cmd", CTLFLAG_RD,
293 &admin_stats->completed_cmd, 0, "Completed commands");
294 SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "out_of_space", CTLFLAG_RD,
295 &admin_stats->out_of_space, 0, "Queue out of space");
296 SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "no_completion", CTLFLAG_RD,
297 &admin_stats->no_completion, 0, "Commands not completed");
301 ena_sysctl_add_eni_metrics(struct ena_adapter *adapter)
304 struct ena_admin_eni_stats *eni_metrics;
306 struct sysctl_ctx_list *ctx;
307 struct sysctl_oid *tree;
308 struct sysctl_oid_list *child;
310 struct sysctl_oid *eni_node;
311 struct sysctl_oid_list *eni_list;
315 ctx = device_get_sysctl_ctx(dev);
316 tree = device_get_sysctl_tree(dev);
317 child = SYSCTL_CHILDREN(tree);
319 eni_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "eni_metrics",
320 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ENA's ENI metrics");
321 eni_list = SYSCTL_CHILDREN(eni_node);
323 eni_metrics = &adapter->eni_metrics;
325 SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "bw_in_allowance_exceeded",
326 CTLFLAG_RD, &eni_metrics->bw_in_allowance_exceeded, 0,
327 "Inbound BW allowance exceeded");
328 SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "bw_out_allowance_exceeded",
329 CTLFLAG_RD, &eni_metrics->bw_out_allowance_exceeded, 0,
330 "Outbound BW allowance exceeded");
331 SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "pps_allowance_exceeded",
332 CTLFLAG_RD, &eni_metrics->pps_allowance_exceeded, 0,
333 "PPS allowance exceeded");
334 SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "conntrack_allowance_exceeded",
335 CTLFLAG_RD, &eni_metrics->conntrack_allowance_exceeded, 0,
336 "Connection tracking allowance exceeded");
337 SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "linklocal_allowance_exceeded",
338 CTLFLAG_RD, &eni_metrics->linklocal_allowance_exceeded, 0,
339 "Linklocal packet rate allowance exceeded");
342 * Tuneable, which determines how often ENI metrics will be read.
343 * 0 means it's turned off. Maximum allowed value is limited by:
344 * ENI_METRICS_MAX_SAMPLE_INTERVAL.
346 SYSCTL_ADD_PROC(ctx, eni_list, OID_AUTO, "sample_interval",
347 CTLTYPE_U16 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
348 ena_sysctl_eni_metrics_interval, "SU",
349 "Interval in seconds for updating ENI emetrics. 0 turns off the update.");
353 ena_sysctl_add_tuneables(struct ena_adapter *adapter)
357 struct sysctl_ctx_list *ctx;
358 struct sysctl_oid *tree;
359 struct sysctl_oid_list *child;
363 ctx = device_get_sysctl_ctx(dev);
364 tree = device_get_sysctl_tree(dev);
365 child = SYSCTL_CHILDREN(tree);
367 /* Tuneable number of buffers in the buf-ring (drbr) */
368 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size",
369 CTLTYPE_U32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
370 ena_sysctl_buf_ring_size, "I",
371 "Size of the Tx buffer ring (drbr).");
373 /* Tuneable number of the Rx ring size */
374 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size",
375 CTLTYPE_U32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
376 ena_sysctl_rx_queue_size, "I",
377 "Size of the Rx ring. The size should be a power of 2.");
379 /* Tuneable number of IO queues */
380 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "io_queues_nb",
381 CTLTYPE_U32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
382 ena_sysctl_io_queues_nb, "I", "Number of IO queues.");
387 ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS)
389 struct ena_adapter *adapter = arg1;
394 error = sysctl_wire_old_buffer(req, sizeof(val));
396 val = adapter->buf_ring_size;
397 error = sysctl_handle_32(oidp, &val, 0, req);
399 if (error != 0 || req->newptr == NULL)
402 if (!powerof2(val) || val == 0) {
403 device_printf(adapter->pdev,
404 "Requested new Tx buffer ring size (%u) is not a power of 2\n",
409 if (val != adapter->buf_ring_size) {
410 device_printf(adapter->pdev,
411 "Requested new Tx buffer ring size: %d. Old size: %d\n",
412 val, adapter->buf_ring_size);
414 error = ena_update_buf_ring_size(adapter, val);
416 device_printf(adapter->pdev,
417 "New Tx buffer ring size is the same as already used: %u\n",
418 adapter->buf_ring_size);
425 ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS)
427 struct ena_adapter *adapter = arg1;
432 error = sysctl_wire_old_buffer(req, sizeof(val));
434 val = adapter->requested_rx_ring_size;
435 error = sysctl_handle_32(oidp, &val, 0, req);
437 if (error != 0 || req->newptr == NULL)
440 if (val < ENA_MIN_RING_SIZE || val > adapter->max_rx_ring_size) {
441 device_printf(adapter->pdev,
442 "Requested new Rx queue size (%u) is out of range: [%u, %u]\n",
443 val, ENA_MIN_RING_SIZE, adapter->max_rx_ring_size);
447 /* Check if the parameter is power of 2 */
448 if (!powerof2(val)) {
449 device_printf(adapter->pdev,
450 "Requested new Rx queue size (%u) is not a power of 2\n",
455 if (val != adapter->requested_rx_ring_size) {
456 device_printf(adapter->pdev,
457 "Requested new Rx queue size: %u. Old size: %u\n",
458 val, adapter->requested_rx_ring_size);
460 error = ena_update_queue_size(adapter,
461 adapter->requested_tx_ring_size, val);
463 device_printf(adapter->pdev,
464 "New Rx queue size is the same as already used: %u\n",
465 adapter->requested_rx_ring_size);
472 * Change number of effectively used IO queues adapter->num_io_queues
475 ena_sysctl_io_queues_nb(SYSCTL_HANDLER_ARGS)
477 struct ena_adapter *adapter = arg1;
481 error = sysctl_wire_old_buffer(req, sizeof(tmp));
483 tmp = adapter->num_io_queues;
484 error = sysctl_handle_int(oidp, &tmp, 0, req);
486 if (error != 0 || req->newptr == NULL)
490 device_printf(adapter->pdev,
491 "Requested number of IO queues is zero\n");
496 * The adapter::max_num_io_queues is the HW capability. The system
497 * resources availability may potentially be a tighter limit. Therefore
498 * the relation `adapter::max_num_io_queues >= adapter::msix_vecs`
499 * always holds true, while the `adapter::msix_vecs` is variable across
500 * device reset (`ena_destroy_device()` + `ena_restore_device()`).
502 if (tmp > (adapter->msix_vecs - ENA_ADMIN_MSIX_VEC)) {
503 device_printf(adapter->pdev,
504 "Requested number of IO queues is higher than maximum "
505 "allowed (%u)\n", adapter->msix_vecs - ENA_ADMIN_MSIX_VEC);
508 if (tmp == adapter->num_io_queues) {
509 device_printf(adapter->pdev,
510 "Requested number of IO queues is equal to current value "
511 "(%u)\n", adapter->num_io_queues);
513 device_printf(adapter->pdev,
514 "Requested new number of IO queues: %u, current value: "
515 "%u\n", tmp, adapter->num_io_queues);
517 error = ena_update_io_queue_nb(adapter, tmp);
524 ena_sysctl_eni_metrics_interval(SYSCTL_HANDLER_ARGS)
526 struct ena_adapter *adapter = arg1;
530 error = sysctl_wire_old_buffer(req, sizeof(interval));
532 interval = adapter->eni_metrics_sample_interval;
533 error = sysctl_handle_16(oidp, &interval, 0, req);
535 if (error != 0 || req->newptr == NULL)
538 if (interval > ENI_METRICS_MAX_SAMPLE_INTERVAL) {
539 device_printf(adapter->pdev,
540 "ENI metrics update interval is out of range - maximum allowed value: %d seconds\n",
541 ENI_METRICS_MAX_SAMPLE_INTERVAL);
546 device_printf(adapter->pdev,
547 "ENI metrics update is now turned off\n");
548 bzero(&adapter->eni_metrics, sizeof(adapter->eni_metrics));
550 device_printf(adapter->pdev,
551 "ENI metrics update interval is set to: %"PRIu16" seconds\n",
555 adapter->eni_metrics_sample_interval = interval;