4 * Copyright (c) 2015-2019 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,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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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_tuneables(struct ena_adapter *);
38 static int ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS);
39 static int ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS);
41 static SYSCTL_NODE(_hw, OID_AUTO, ena, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
42 "ENA driver parameters");
45 * Logging level for changing verbosity of the output
47 int ena_log_level = ENA_ALERT | ENA_WARNING;
48 SYSCTL_INT(_hw_ena, OID_AUTO, log_level, CTLFLAG_RWTUN,
49 &ena_log_level, 0, "Logging level indicating verbosity of the logs");
52 * Use 9k mbufs for the Rx buffers. Default to 0 (use page size mbufs instead).
53 * Using 9k mbufs in low memory conditions might cause allocation to take a lot
54 * of time and lead to the OS instability as it needs to look for the contiguous
56 * However, page size mbufs has a bit smaller throughput than 9k mbufs, so if
57 * the network performance is the priority, the 9k mbufs can be used.
59 int ena_enable_9k_mbufs = 0;
60 SYSCTL_INT(_hw_ena, OID_AUTO, enable_9k_mbufs, CTLFLAG_RDTUN,
61 &ena_enable_9k_mbufs, 0, "Use 9 kB mbufs for Rx descriptors");
64 ena_sysctl_add_nodes(struct ena_adapter *adapter)
66 ena_sysctl_add_wd(adapter);
67 ena_sysctl_add_stats(adapter);
68 ena_sysctl_add_tuneables(adapter);
72 ena_sysctl_add_wd(struct ena_adapter *adapter)
76 struct sysctl_ctx_list *ctx;
77 struct sysctl_oid *tree;
78 struct sysctl_oid_list *child;
82 ctx = device_get_sysctl_ctx(dev);
83 tree = device_get_sysctl_tree(dev);
84 child = SYSCTL_CHILDREN(tree);
86 /* Sysctl calls for Watchdog service */
87 SYSCTL_ADD_INT(ctx, child, OID_AUTO, "wd_active",
88 CTLFLAG_RWTUN, &adapter->wd_active, 0,
89 "Watchdog is active");
91 SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "keep_alive_timeout",
92 CTLFLAG_RWTUN, &adapter->keep_alive_timeout,
93 "Timeout for Keep Alive messages");
95 SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "missing_tx_timeout",
96 CTLFLAG_RWTUN, &adapter->missing_tx_timeout,
97 "Timeout for TX completion");
99 SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_max_queues",
100 CTLFLAG_RWTUN, &adapter->missing_tx_max_queues, 0,
101 "Number of TX queues to check per run");
103 SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_threshold",
104 CTLFLAG_RWTUN, &adapter->missing_tx_threshold, 0,
105 "Max number of timeouted packets");
109 ena_sysctl_add_stats(struct ena_adapter *adapter)
113 struct ena_ring *tx_ring;
114 struct ena_ring *rx_ring;
116 struct ena_hw_stats *hw_stats;
117 struct ena_stats_dev *dev_stats;
118 struct ena_stats_tx *tx_stats;
119 struct ena_stats_rx *rx_stats;
120 struct ena_com_stats_admin *admin_stats;
122 struct sysctl_ctx_list *ctx;
123 struct sysctl_oid *tree;
124 struct sysctl_oid_list *child;
126 struct sysctl_oid *queue_node, *tx_node, *rx_node, *hw_node;
127 struct sysctl_oid *admin_node;
128 struct sysctl_oid_list *queue_list, *tx_list, *rx_list, *hw_list;
129 struct sysctl_oid_list *admin_list;
131 #define QUEUE_NAME_LEN 32
132 char namebuf[QUEUE_NAME_LEN];
137 ctx = device_get_sysctl_ctx(dev);
138 tree = device_get_sysctl_tree(dev);
139 child = SYSCTL_CHILDREN(tree);
141 tx_ring = adapter->tx_ring;
142 rx_ring = adapter->rx_ring;
144 hw_stats = &adapter->hw_stats;
145 dev_stats = &adapter->dev_stats;
146 admin_stats = &adapter->ena_dev->admin_queue.stats;
148 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "wd_expired",
149 CTLFLAG_RD, &dev_stats->wd_expired,
150 "Watchdog expiry count");
151 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_up",
152 CTLFLAG_RD, &dev_stats->interface_up,
153 "Network interface up count");
154 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_down",
155 CTLFLAG_RD, &dev_stats->interface_down,
156 "Network interface down count");
157 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "admin_q_pause",
158 CTLFLAG_RD, &dev_stats->admin_q_pause,
159 "Admin queue pauses");
161 for (i = 0; i < adapter->num_queues; ++i, ++tx_ring, ++rx_ring) {
162 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
164 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO,
165 namebuf, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Queue Name");
166 queue_list = SYSCTL_CHILDREN(queue_node);
168 /* TX specific stats */
169 tx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
170 "tx_ring", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "TX ring");
171 tx_list = SYSCTL_CHILDREN(tx_node);
173 tx_stats = &tx_ring->tx_stats;
175 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
177 &tx_stats->cnt, "Packets sent");
178 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
180 &tx_stats->bytes, "Bytes sent");
181 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
182 "prepare_ctx_err", CTLFLAG_RD,
183 &tx_stats->prepare_ctx_err,
184 "TX buffer preparation failures");
185 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
186 "dma_mapping_err", CTLFLAG_RD,
187 &tx_stats->dma_mapping_err, "DMA mapping failures");
188 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
189 "doorbells", CTLFLAG_RD,
190 &tx_stats->doorbells, "Queue doorbells");
191 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
192 "missing_tx_comp", CTLFLAG_RD,
193 &tx_stats->missing_tx_comp, "TX completions missed");
194 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
195 "bad_req_id", CTLFLAG_RD,
196 &tx_stats->bad_req_id, "Bad request id count");
197 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
198 "mbuf_collapses", CTLFLAG_RD,
200 "Mbuf collapse count");
201 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
202 "mbuf_collapse_err", CTLFLAG_RD,
203 &tx_stats->collapse_err,
204 "Mbuf collapse failures");
205 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
206 "queue_wakeups", CTLFLAG_RD,
207 &tx_stats->queue_wakeup, "Queue wakeups");
208 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
209 "queue_stops", CTLFLAG_RD,
210 &tx_stats->queue_stop, "Queue stops");
211 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
212 "llq_buffer_copy", CTLFLAG_RD,
213 &tx_stats->llq_buffer_copy,
214 "Header copies for llq transaction");
216 /* RX specific stats */
217 rx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
218 "rx_ring", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "RX ring");
219 rx_list = SYSCTL_CHILDREN(rx_node);
221 rx_stats = &rx_ring->rx_stats;
223 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
225 &rx_stats->cnt, "Packets received");
226 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
228 &rx_stats->bytes, "Bytes received");
229 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
230 "refil_partial", CTLFLAG_RD,
231 &rx_stats->refil_partial, "Partial refilled mbufs");
232 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
233 "bad_csum", CTLFLAG_RD,
234 &rx_stats->bad_csum, "Bad RX checksum");
235 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
236 "mbuf_alloc_fail", CTLFLAG_RD,
237 &rx_stats->mbuf_alloc_fail, "Failed mbuf allocs");
238 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
239 "mjum_alloc_fail", CTLFLAG_RD,
240 &rx_stats->mjum_alloc_fail, "Failed jumbo mbuf allocs");
241 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
242 "dma_mapping_err", CTLFLAG_RD,
243 &rx_stats->dma_mapping_err, "DMA mapping errors");
244 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
245 "bad_desc_num", CTLFLAG_RD,
246 &rx_stats->bad_desc_num, "Bad descriptor count");
247 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
248 "bad_req_id", CTLFLAG_RD,
249 &rx_stats->bad_req_id, "Bad request id count");
250 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
251 "empty_rx_ring", CTLFLAG_RD,
252 &rx_stats->empty_rx_ring, "RX descriptors depletion count");
255 /* Stats read from device */
256 hw_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "hw_stats",
257 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Statistics from hardware");
258 hw_list = SYSCTL_CHILDREN(hw_node);
260 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_packets", CTLFLAG_RD,
261 &hw_stats->rx_packets, "Packets received");
262 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_packets", CTLFLAG_RD,
263 &hw_stats->tx_packets, "Packets transmitted");
264 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_bytes", CTLFLAG_RD,
265 &hw_stats->rx_bytes, "Bytes received");
266 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_bytes", CTLFLAG_RD,
267 &hw_stats->tx_bytes, "Bytes transmitted");
268 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_drops", CTLFLAG_RD,
269 &hw_stats->rx_drops, "Receive packet drops");
271 /* ENA Admin queue stats */
272 admin_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "admin_stats",
273 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ENA Admin Queue statistics");
274 admin_list = SYSCTL_CHILDREN(admin_node);
276 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "aborted_cmd", CTLFLAG_RD,
277 &admin_stats->aborted_cmd, 0, "Aborted commands");
278 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "sumbitted_cmd", CTLFLAG_RD,
279 &admin_stats->submitted_cmd, 0, "Submitted commands");
280 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "completed_cmd", CTLFLAG_RD,
281 &admin_stats->completed_cmd, 0, "Completed commands");
282 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "out_of_space", CTLFLAG_RD,
283 &admin_stats->out_of_space, 0, "Queue out of space");
284 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "no_completion", CTLFLAG_RD,
285 &admin_stats->no_completion, 0, "Commands not completed");
289 ena_sysctl_add_tuneables(struct ena_adapter *adapter)
293 struct sysctl_ctx_list *ctx;
294 struct sysctl_oid *tree;
295 struct sysctl_oid_list *child;
299 ctx = device_get_sysctl_ctx(dev);
300 tree = device_get_sysctl_tree(dev);
301 child = SYSCTL_CHILDREN(tree);
303 /* Tuneable number of buffers in the buf-ring (drbr) */
304 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size",
305 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, adapter, 0,
306 ena_sysctl_buf_ring_size, "I", "Size of the bufring");
308 /* Tuneable number of Rx ring size */
309 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size",
310 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, adapter, 0,
311 ena_sysctl_rx_queue_size, "I", "Size of the Rx ring. "
312 "The size should be a power of 2. Max value is 8K");
317 ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS)
319 struct ena_adapter *adapter = arg1;
324 error = sysctl_wire_old_buffer(req, sizeof(int));
326 val = adapter->buf_ring_size;
327 error = sysctl_handle_int(oidp, &val, 0, req);
329 if (error != 0 || req->newptr == NULL)
334 device_printf(adapter->pdev,
335 "Requested new buf ring size: %d. Old size: %d\n",
336 val, adapter->buf_ring_size);
338 if (val != adapter->buf_ring_size) {
339 adapter->buf_ring_size = val;
340 adapter->reset_reason = ENA_REGS_RESET_OS_TRIGGER;
341 ENA_FLAG_SET_ATOMIC(ENA_FLAG_TRIGGER_RESET, adapter);
348 ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS)
350 struct ena_adapter *adapter = arg1;
355 error = sysctl_wire_old_buffer(req, sizeof(int));
357 val = adapter->rx_ring_size;
358 error = sysctl_handle_int(oidp, &val, 0, req);
360 if (error != 0 || req->newptr == NULL)
365 device_printf(adapter->pdev,
366 "Requested new rx queue size: %d. Old size: %d\n",
367 val, adapter->rx_ring_size);
369 if (val != adapter->rx_ring_size) {
370 adapter->rx_ring_size = val;
371 adapter->reset_reason = ENA_REGS_RESET_OS_TRIGGER;
372 ENA_FLAG_SET_ATOMIC(ENA_FLAG_TRIGGER_RESET, adapter);