ena_sysctl.c revision 361467
1/*- 2 * BSD LICENSE 3 * 4 * Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 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. 17 * 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 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: stable/11/sys/dev/ena/ena_sysctl.c 361467 2020-05-25 17:41:20Z mw $"); 32 33#include "ena_sysctl.h" 34 35static void ena_sysctl_add_wd(struct ena_adapter *); 36static void ena_sysctl_add_stats(struct ena_adapter *); 37static void ena_sysctl_add_tuneables(struct ena_adapter *); 38static int ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS); 39static int ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS); 40 41static SYSCTL_NODE(_hw, OID_AUTO, ena, CTLFLAG_RD, 0, "ENA driver parameters"); 42 43/* 44 * Logging level for changing verbosity of the output 45 */ 46int ena_log_level = ENA_ALERT | ENA_WARNING; 47SYSCTL_INT(_hw_ena, OID_AUTO, log_level, CTLFLAG_RWTUN, 48 &ena_log_level, 0, "Logging level indicating verbosity of the logs"); 49 50 51void 52ena_sysctl_add_nodes(struct ena_adapter *adapter) 53{ 54 ena_sysctl_add_wd(adapter); 55 ena_sysctl_add_stats(adapter); 56 ena_sysctl_add_tuneables(adapter); 57} 58 59static void 60ena_sysctl_add_wd(struct ena_adapter *adapter) 61{ 62 device_t dev; 63 64 struct sysctl_ctx_list *ctx; 65 struct sysctl_oid *tree; 66 struct sysctl_oid_list *child; 67 68 dev = adapter->pdev; 69 70 ctx = device_get_sysctl_ctx(dev); 71 tree = device_get_sysctl_tree(dev); 72 child = SYSCTL_CHILDREN(tree); 73 74 /* Sysctl calls for Watchdog service */ 75 SYSCTL_ADD_INT(ctx, child, OID_AUTO, "wd_active", 76 CTLFLAG_RWTUN, &adapter->wd_active, 0, 77 "Watchdog is active"); 78 79 SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "keep_alive_timeout", 80 CTLFLAG_RWTUN, &adapter->keep_alive_timeout, 81 "Timeout for Keep Alive messages"); 82 83 SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "missing_tx_timeout", 84 CTLFLAG_RWTUN, &adapter->missing_tx_timeout, 85 "Timeout for TX completion"); 86 87 SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_max_queues", 88 CTLFLAG_RWTUN, &adapter->missing_tx_max_queues, 0, 89 "Number of TX queues to check per run"); 90 91 SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_threshold", 92 CTLFLAG_RWTUN, &adapter->missing_tx_threshold, 0, 93 "Max number of timeouted packets"); 94} 95 96static void 97ena_sysctl_add_stats(struct ena_adapter *adapter) 98{ 99 device_t dev; 100 101 struct ena_ring *tx_ring; 102 struct ena_ring *rx_ring; 103 104 struct ena_hw_stats *hw_stats; 105 struct ena_stats_dev *dev_stats; 106 struct ena_stats_tx *tx_stats; 107 struct ena_stats_rx *rx_stats; 108 struct ena_com_stats_admin *admin_stats; 109 110 struct sysctl_ctx_list *ctx; 111 struct sysctl_oid *tree; 112 struct sysctl_oid_list *child; 113 114 struct sysctl_oid *queue_node, *tx_node, *rx_node, *hw_node; 115 struct sysctl_oid *admin_node; 116 struct sysctl_oid_list *queue_list, *tx_list, *rx_list, *hw_list; 117 struct sysctl_oid_list *admin_list; 118 119#define QUEUE_NAME_LEN 32 120 char namebuf[QUEUE_NAME_LEN]; 121 int i; 122 123 dev = adapter->pdev; 124 125 ctx = device_get_sysctl_ctx(dev); 126 tree = device_get_sysctl_tree(dev); 127 child = SYSCTL_CHILDREN(tree); 128 129 tx_ring = adapter->tx_ring; 130 rx_ring = adapter->rx_ring; 131 132 hw_stats = &adapter->hw_stats; 133 dev_stats = &adapter->dev_stats; 134 admin_stats = &adapter->ena_dev->admin_queue.stats; 135 136 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "wd_expired", 137 CTLFLAG_RD, &dev_stats->wd_expired, 138 "Watchdog expiry count"); 139 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_up", 140 CTLFLAG_RD, &dev_stats->interface_up, 141 "Network interface up count"); 142 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_down", 143 CTLFLAG_RD, &dev_stats->interface_down, 144 "Network interface down count"); 145 SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "admin_q_pause", 146 CTLFLAG_RD, &dev_stats->admin_q_pause, 147 "Admin queue pauses"); 148 149 for (i = 0; i < adapter->num_queues; ++i, ++tx_ring, ++rx_ring) { 150 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i); 151 152 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, 153 namebuf, CTLFLAG_RD, NULL, "Queue Name"); 154 queue_list = SYSCTL_CHILDREN(queue_node); 155 156 /* TX specific stats */ 157 tx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO, 158 "tx_ring", CTLFLAG_RD, NULL, "TX ring"); 159 tx_list = SYSCTL_CHILDREN(tx_node); 160 161 tx_stats = &tx_ring->tx_stats; 162 163 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 164 "count", CTLFLAG_RD, 165 &tx_stats->cnt, "Packets sent"); 166 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 167 "bytes", CTLFLAG_RD, 168 &tx_stats->bytes, "Bytes sent"); 169 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 170 "prepare_ctx_err", CTLFLAG_RD, 171 &tx_stats->prepare_ctx_err, 172 "TX buffer preparation failures"); 173 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 174 "dma_mapping_err", CTLFLAG_RD, 175 &tx_stats->dma_mapping_err, "DMA mapping failures"); 176 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 177 "doorbells", CTLFLAG_RD, 178 &tx_stats->doorbells, "Queue doorbells"); 179 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 180 "missing_tx_comp", CTLFLAG_RD, 181 &tx_stats->missing_tx_comp, "TX completions missed"); 182 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 183 "bad_req_id", CTLFLAG_RD, 184 &tx_stats->bad_req_id, "Bad request id count"); 185 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 186 "mbuf_collapses", CTLFLAG_RD, 187 &tx_stats->collapse, 188 "Mbuf collapse count"); 189 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 190 "mbuf_collapse_err", CTLFLAG_RD, 191 &tx_stats->collapse_err, 192 "Mbuf collapse failures"); 193 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 194 "queue_wakeups", CTLFLAG_RD, 195 &tx_stats->queue_wakeup, "Queue wakeups"); 196 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 197 "queue_stops", CTLFLAG_RD, 198 &tx_stats->queue_stop, "Queue stops"); 199 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, 200 "llq_buffer_copy", CTLFLAG_RD, 201 &tx_stats->llq_buffer_copy, 202 "Header copies for llq transaction"); 203 204 /* RX specific stats */ 205 rx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO, 206 "rx_ring", CTLFLAG_RD, NULL, "RX ring"); 207 rx_list = SYSCTL_CHILDREN(rx_node); 208 209 rx_stats = &rx_ring->rx_stats; 210 211 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 212 "count", CTLFLAG_RD, 213 &rx_stats->cnt, "Packets received"); 214 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 215 "bytes", CTLFLAG_RD, 216 &rx_stats->bytes, "Bytes received"); 217 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 218 "refil_partial", CTLFLAG_RD, 219 &rx_stats->refil_partial, "Partial refilled mbufs"); 220 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 221 "bad_csum", CTLFLAG_RD, 222 &rx_stats->bad_csum, "Bad RX checksum"); 223 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 224 "mbuf_alloc_fail", CTLFLAG_RD, 225 &rx_stats->mbuf_alloc_fail, "Failed mbuf allocs"); 226 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 227 "mjum_alloc_fail", CTLFLAG_RD, 228 &rx_stats->mjum_alloc_fail, "Failed jumbo mbuf allocs"); 229 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 230 "dma_mapping_err", CTLFLAG_RD, 231 &rx_stats->dma_mapping_err, "DMA mapping errors"); 232 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 233 "bad_desc_num", CTLFLAG_RD, 234 &rx_stats->bad_desc_num, "Bad descriptor count"); 235 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 236 "bad_req_id", CTLFLAG_RD, 237 &rx_stats->bad_req_id, "Bad request id count"); 238 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, 239 "empty_rx_ring", CTLFLAG_RD, 240 &rx_stats->empty_rx_ring, "RX descriptors depletion count"); 241 } 242 243 /* Stats read from device */ 244 hw_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "hw_stats", 245 CTLFLAG_RD, NULL, "Statistics from hardware"); 246 hw_list = SYSCTL_CHILDREN(hw_node); 247 248 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_packets", CTLFLAG_RD, 249 &hw_stats->rx_packets, "Packets received"); 250 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_packets", CTLFLAG_RD, 251 &hw_stats->tx_packets, "Packets transmitted"); 252 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_bytes", CTLFLAG_RD, 253 &hw_stats->rx_bytes, "Bytes received"); 254 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_bytes", CTLFLAG_RD, 255 &hw_stats->tx_bytes, "Bytes transmitted"); 256 SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_drops", CTLFLAG_RD, 257 &hw_stats->rx_drops, "Receive packet drops"); 258 259 /* ENA Admin queue stats */ 260 admin_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "admin_stats", 261 CTLFLAG_RD, NULL, "ENA Admin Queue statistics"); 262 admin_list = SYSCTL_CHILDREN(admin_node); 263 264 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "aborted_cmd", CTLFLAG_RD, 265 &admin_stats->aborted_cmd, 0, "Aborted commands"); 266 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "sumbitted_cmd", CTLFLAG_RD, 267 &admin_stats->submitted_cmd, 0, "Submitted commands"); 268 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "completed_cmd", CTLFLAG_RD, 269 &admin_stats->completed_cmd, 0, "Completed commands"); 270 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "out_of_space", CTLFLAG_RD, 271 &admin_stats->out_of_space, 0, "Queue out of space"); 272 SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "no_completion", CTLFLAG_RD, 273 &admin_stats->no_completion, 0, "Commands not completed"); 274} 275 276static void 277ena_sysctl_add_tuneables(struct ena_adapter *adapter) 278{ 279 device_t dev; 280 281 struct sysctl_ctx_list *ctx; 282 struct sysctl_oid *tree; 283 struct sysctl_oid_list *child; 284 285 dev = adapter->pdev; 286 287 ctx = device_get_sysctl_ctx(dev); 288 tree = device_get_sysctl_tree(dev); 289 child = SYSCTL_CHILDREN(tree); 290 291 /* Tuneable number of buffers in the buf-ring (drbr) */ 292 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size", CTLTYPE_INT | 293 CTLFLAG_RW, adapter, 0, ena_sysctl_buf_ring_size, "I", 294 "Size of the bufring"); 295 296 /* Tuneable number of Rx ring size */ 297 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size", CTLTYPE_INT | 298 CTLFLAG_RW, adapter, 0, ena_sysctl_rx_queue_size, "I", 299 "Size of the Rx ring. The size should be a power of 2. " 300 "Max value is 8K"); 301} 302 303 304static int 305ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS) 306{ 307 struct ena_adapter *adapter = arg1; 308 int val; 309 int error; 310 311 val = 0; 312 error = sysctl_wire_old_buffer(req, sizeof(int)); 313 if (error == 0) { 314 val = adapter->buf_ring_size; 315 error = sysctl_handle_int(oidp, &val, 0, req); 316 } 317 if (error != 0 || req->newptr == NULL) 318 return (error); 319 if (val < 0) 320 return (EINVAL); 321 322 device_printf(adapter->pdev, 323 "Requested new buf ring size: %d. Old size: %d\n", 324 val, adapter->buf_ring_size); 325 326 if (val != adapter->buf_ring_size) { 327 adapter->buf_ring_size = val; 328 adapter->reset_reason = ENA_REGS_RESET_OS_TRIGGER; 329 ENA_FLAG_SET_ATOMIC(ENA_FLAG_TRIGGER_RESET, adapter); 330 } 331 332 return (0); 333} 334 335static int 336ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS) 337{ 338 struct ena_adapter *adapter = arg1; 339 int val; 340 int error; 341 342 val = 0; 343 error = sysctl_wire_old_buffer(req, sizeof(int)); 344 if (error == 0) { 345 val = adapter->rx_ring_size; 346 error = sysctl_handle_int(oidp, &val, 0, req); 347 } 348 if (error != 0 || req->newptr == NULL) 349 return (error); 350 if (val < 16) 351 return (EINVAL); 352 353 device_printf(adapter->pdev, 354 "Requested new rx queue size: %d. Old size: %d\n", 355 val, adapter->rx_ring_size); 356 357 if (val != adapter->rx_ring_size) { 358 adapter->rx_ring_size = val; 359 adapter->reset_reason = ENA_REGS_RESET_OS_TRIGGER; 360 ENA_FLAG_SET_ATOMIC(ENA_FLAG_TRIGGER_RESET, adapter); 361 } 362 363 return (0); 364} 365