sys/dev/ena/ena_sysctl.c

   1 /*-
   2  * BSD LICENSE
   3  *
   4  * Copyright (c) 2015-2017 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("$FreeBSD$");
  32
  33 #include "ena_sysctl.h"
  34
  35 static int      ena_sysctl_update_stats(SYSCTL_HANDLER_ARGS);
  36 static void     ena_sysctl_add_stats(struct ena_adapter *);
  37
  38 void
  39 ena_sysctl_add_nodes(struct ena_adapter *adapter)
  40 {
  41         ena_sysctl_add_stats(adapter);
  42 }
  43
  44 static void
  45 ena_sysctl_add_stats(struct ena_adapter *adapter)
  46 {
  47         device_t dev;
  48
  49         struct ena_ring *tx_ring;
  50         struct ena_ring *rx_ring;
  51
  52         struct ena_hw_stats *hw_stats;
  53         struct ena_stats_dev *dev_stats;
  54         struct ena_stats_tx *tx_stats;
  55         struct ena_stats_rx *rx_stats;
  56         struct ena_com_stats_admin *admin_stats;
  57
  58         struct sysctl_ctx_list *ctx;
  59         struct sysctl_oid *tree;
  60         struct sysctl_oid_list *child;
  61
  62         struct sysctl_oid *queue_node, *tx_node, *rx_node, *hw_node;
  63         struct sysctl_oid *admin_node;
  64         struct sysctl_oid_list *queue_list, *tx_list, *rx_list, *hw_list;
  65         struct sysctl_oid_list *admin_list;
  66
  67 #define QUEUE_NAME_LEN 32
  68         char namebuf[QUEUE_NAME_LEN];
  69         int i;
  70
  71         dev = adapter->pdev;
  72
  73         ctx = device_get_sysctl_ctx(dev);
  74         tree = device_get_sysctl_tree(dev);
  75         child = SYSCTL_CHILDREN(tree);
  76
  77         tx_ring = adapter->tx_ring;
  78         rx_ring = adapter->rx_ring;
  79
  80         hw_stats = &adapter->hw_stats;
  81         dev_stats = &adapter->dev_stats;
  82         admin_stats = &adapter->ena_dev->admin_queue.stats;
  83
  84         SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "tx_timeout",
  85             CTLFLAG_RD, &dev_stats->tx_timeout,
  86             "Driver TX timeouts");
  87         SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "io_suspend",
  88             CTLFLAG_RD, &dev_stats->io_suspend,
  89             "IO queue suspends");
  90         SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "io_resume",
  91             CTLFLAG_RD, &dev_stats->io_resume,
  92             "IO queue resumes");
  93         SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "wd_expired",
  94             CTLFLAG_RD, &dev_stats->wd_expired,
  95             "Watchdog expiry count");
  96         SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_up",
  97             CTLFLAG_RD, &dev_stats->interface_up,
  98             "Network interface up count");
  99         SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_down",
 100             CTLFLAG_RD, &dev_stats->interface_down,
 101             "Network interface down count");
 102         SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "admin_q_pause",
 103             CTLFLAG_RD, &dev_stats->admin_q_pause,
 104             "Admin queue pauses");
 105
 106         for (i = 0; i < adapter->num_queues; ++i, ++tx_ring, ++rx_ring) {
 107                 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
 108
 109                 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO,
 110                     namebuf, CTLFLAG_RD, NULL, "Queue Name");
 111                 queue_list = SYSCTL_CHILDREN(queue_node);
 112
 113                 /* TX specific stats */
 114                 tx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
 115                     "tx_ring", CTLFLAG_RD, NULL, "TX ring");
 116                 tx_list = SYSCTL_CHILDREN(tx_node);
 117
 118                 tx_stats = &tx_ring->tx_stats;
 119
 120                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 121                     "count", CTLFLAG_RD,
 122                     &tx_stats->cnt, "Packets sent");
 123                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 124                     "bytes", CTLFLAG_RD,
 125                     &tx_stats->bytes, "Bytes sent");
 126                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 127                     "prepare_ctx_err", CTLFLAG_RD,
 128                     &tx_stats->prepare_ctx_err,
 129                     "TX buffer preparation failures");
 130                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 131                     "queue_wakeup", CTLFLAG_RD,
 132                     &tx_stats->queue_wakeup, "Queue wakeups");
 133                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 134                     "dma_mapping_err", CTLFLAG_RD,
 135                     &tx_stats->dma_mapping_err, "DMA mapping failures");
 136                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 137                     "unsupported_desc_num", CTLFLAG_RD,
 138                     &tx_stats->unsupported_desc_num,
 139                     "Excessive descriptor packet discards");
 140                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 141                     "napi_comp", CTLFLAG_RD,
 142                     &tx_stats->napi_comp, "Napi completions");
 143                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 144                     "tx_poll", CTLFLAG_RD,
 145                     &tx_stats->tx_poll, "TX poll count");
 146                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 147                     "doorbells", CTLFLAG_RD,
 148                     &tx_stats->doorbells, "Queue doorbells");
 149                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 150                     "missing_tx_comp", CTLFLAG_RD,
 151                     &tx_stats->missing_tx_comp, "TX completions missed");
 152                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 153                     "bad_req_id", CTLFLAG_RD,
 154                     &tx_stats->bad_req_id, "Bad request id count");
 155                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 156                     "stops", CTLFLAG_RD,
 157                     &tx_stats->queue_stop, "Queue stops");
 158                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 159                         "mbuf_collapses", CTLFLAG_RD,
 160                         &tx_stats->collapse,
 161                         "Mbuf collapse count");
 162                 SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
 163                         "mbuf_collapse_err", CTLFLAG_RD,
 164                         &tx_stats->collapse_err,
 165                         "Mbuf collapse failures");
 166
 167                 /* RX specific stats */
 168                 rx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO,
 169                     "rx_ring", CTLFLAG_RD, NULL, "RX ring");
 170                 rx_list = SYSCTL_CHILDREN(rx_node);
 171
 172                 rx_stats = &rx_ring->rx_stats;
 173
 174                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 175                     "count", CTLFLAG_RD,
 176                     &rx_stats->cnt, "Packets received");
 177                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 178                     "bytes", CTLFLAG_RD,
 179                     &rx_stats->bytes, "Bytes received");
 180                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 181                     "refil_partial", CTLFLAG_RD,
 182                     &rx_stats->refil_partial, "Partial refilled mbufs");
 183                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 184                     "bad_csum", CTLFLAG_RD,
 185                     &rx_stats->bad_csum, "Bad RX checksum");
 186                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 187                     "page_alloc_fail", CTLFLAG_RD,
 188                     &rx_stats->page_alloc_fail, "Failed page allocs");
 189                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 190                     "mbuf_alloc_fail", CTLFLAG_RD,
 191                     &rx_stats->mbuf_alloc_fail, "Failed mbuf allocs");
 192                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 193                     "dma_mapping_err", CTLFLAG_RD,
 194                     &rx_stats->dma_mapping_err, "DMA mapping errors");
 195                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 196                     "bad_desc_num", CTLFLAG_RD,
 197                     &rx_stats->bad_desc_num, "Bad descriptor count");
 198                 SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
 199                     "small_copy_len_pkt", CTLFLAG_RD,
 200                     &rx_stats->small_copy_len_pkt, "Small copy packet count");
 201         }
 202
 203         /* Stats read from device */
 204         hw_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "hw_stats",
 205             CTLFLAG_RD, NULL, "Statistics from hardware");
 206         hw_list = SYSCTL_CHILDREN(hw_node);
 207
 208         SYSCTL_ADD_U64(ctx, hw_list, OID_AUTO, "rx_packets", CTLFLAG_RD,
 209             &hw_stats->rx_packets, 0, "Packets received");
 210         SYSCTL_ADD_U64(ctx, hw_list, OID_AUTO, "tx_packets", CTLFLAG_RD,
 211             &hw_stats->tx_packets, 0, "Packets transmitted");
 212         SYSCTL_ADD_U64(ctx, hw_list, OID_AUTO, "rx_bytes", CTLFLAG_RD,
 213             &hw_stats->rx_bytes, 0, "Bytes received");
 214         SYSCTL_ADD_U64(ctx, hw_list, OID_AUTO, "tx_bytes", CTLFLAG_RD,
 215             &hw_stats->tx_bytes, 0, "Bytes transmitted");
 216         SYSCTL_ADD_U64(ctx, hw_list, OID_AUTO, "rx_drops", CTLFLAG_RD,
 217             &hw_stats->rx_drops, 0, "Receive packet drops");
 218
 219         SYSCTL_ADD_PROC(ctx, hw_list, OID_AUTO, "update_stats",
 220             CTLTYPE_INT|CTLFLAG_RD, adapter, 0, ena_sysctl_update_stats,
 221             "A", "Update stats from hardware");
 222         /* ENA Admin queue stats */
 223         admin_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "admin_stats",
 224             CTLFLAG_RD, NULL, "ENA Admin Queue statistics");
 225         admin_list = SYSCTL_CHILDREN(admin_node);
 226
 227         SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "aborted_cmd", CTLFLAG_RD,
 228             &admin_stats->aborted_cmd, 0, "Aborted commands");
 229         SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "sumbitted_cmd", CTLFLAG_RD,
 230             &admin_stats->submitted_cmd, 0, "Submitted commands");
 231         SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "completed_cmd", CTLFLAG_RD,
 232             &admin_stats->completed_cmd, 0, "Completed commands");
 233         SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "out_of_space", CTLFLAG_RD,
 234             &admin_stats->out_of_space, 0, "Queue out of space");
 235         SYSCTL_ADD_U32(ctx, admin_list, OID_AUTO, "no_completion", CTLFLAG_RD,
 236             &admin_stats->no_completion, 0, "Commands not completed");
 237 }
 238
 239 static int
 240 ena_sysctl_update_stats(SYSCTL_HANDLER_ARGS)
 241 {
 242         struct ena_adapter *adapter = (struct ena_adapter *)arg1;
 243         int rc;
 244
 245         if (adapter->up)
 246                 ena_update_stats_counters(adapter);
 247
 248         rc = sysctl_handle_string(oidp, "", 1, req);
 249         return (rc);
 250 }
 251