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ena_sysctl.c
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ena_sysctl.c
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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2015-2024 Amazon.com, Inc. or its affiliates.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if __FreeBSD_version < 1500004
#include <sys/cdefs.h>
#endif
#include <sys/param.h>
#if __FreeBSD_version <= 1302507
__FBSDID("$FreeBSD$");
#endif
#include "ena_rss.h"
#include "ena_sysctl.h"
static void ena_sysctl_add_wd(struct ena_adapter *);
static void ena_sysctl_add_stats(struct ena_adapter *);
static void ena_sysctl_add_eni_metrics(struct ena_adapter *);
static void ena_sysctl_add_customer_metrics(struct ena_adapter *);
static void ena_sysctl_add_srd_info(struct ena_adapter *);
static void ena_sysctl_add_tuneables(struct ena_adapter *);
static void ena_sysctl_add_irq_affinity(struct ena_adapter *);
/* Kernel option RSS prevents manipulation of key hash and indirection table. */
#ifndef RSS
static void ena_sysctl_add_rss(struct ena_adapter *);
#endif
static int ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS);
static int ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS);
static int ena_sysctl_io_queues_nb(SYSCTL_HANDLER_ARGS);
static int ena_sysctl_irq_base_cpu(SYSCTL_HANDLER_ARGS);
static int ena_sysctl_irq_cpu_stride(SYSCTL_HANDLER_ARGS);
static int ena_sysctl_metrics_interval(SYSCTL_HANDLER_ARGS);
#ifndef RSS
static int ena_sysctl_rss_key(SYSCTL_HANDLER_ARGS);
static int ena_sysctl_rss_indir_table(SYSCTL_HANDLER_ARGS);
#endif
/* Limit max ENA sample rate to be an hour. */
#define ENA_METRICS_MAX_SAMPLE_INTERVAL 3600
#define ENA_HASH_KEY_MSG_SIZE (ENA_HASH_KEY_SIZE * 2 + 1)
#define SYSCTL_GSTRING_LEN 128
#define ENA_METRIC_ENI_ENTRY(stat, desc) { \
.name = #stat, \
.description = #desc, \
}
#define ENA_STAT_ENTRY(stat, desc, stat_type) { \
.name = #stat, \
.description = #desc, \
.stat_offset = offsetof(struct ena_admin_##stat_type, stat) / sizeof(u64), \
}
#define ENA_STAT_ENA_SRD_ENTRY(stat, desc) \
ENA_STAT_ENTRY(stat, desc, ena_srd_stats)
struct ena_hw_metrics {
char name[SYSCTL_GSTRING_LEN];
char description[SYSCTL_GSTRING_LEN];
};
struct ena_srd_metrics {
char name[SYSCTL_GSTRING_LEN];
char description[SYSCTL_GSTRING_LEN];
int stat_offset;
};
static const struct ena_srd_metrics ena_srd_stats_strings[] = {
ENA_STAT_ENA_SRD_ENTRY(
ena_srd_tx_pkts, Number of packets transmitted over ENA SRD),
ENA_STAT_ENA_SRD_ENTRY(
ena_srd_eligible_tx_pkts, Number of packets transmitted or could
have been transmitted over ENA SRD),
ENA_STAT_ENA_SRD_ENTRY(
ena_srd_rx_pkts, Number of packets received over ENA SRD),
ENA_STAT_ENA_SRD_ENTRY(
ena_srd_resource_utilization, Percentage of the ENA SRD resources
that are in use),
};
static const struct ena_hw_metrics ena_hw_stats_strings[] = {
ENA_METRIC_ENI_ENTRY(
bw_in_allowance_exceeded, Inbound BW allowance exceeded),
ENA_METRIC_ENI_ENTRY(
bw_out_allowance_exceeded, Outbound BW allowance exceeded),
ENA_METRIC_ENI_ENTRY(
pps_allowance_exceeded, PPS allowance exceeded),
ENA_METRIC_ENI_ENTRY(
conntrack_allowance_exceeded, Connection tracking allowance exceeded),
ENA_METRIC_ENI_ENTRY(
linklocal_allowance_exceeded, Linklocal packet rate allowance),
ENA_METRIC_ENI_ENTRY(
conntrack_allowance_available, Number of available conntracks),
};
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#endif
#define ENA_CUSTOMER_METRICS_ARRAY_SIZE ARRAY_SIZE(ena_hw_stats_strings)
#define ENA_SRD_METRICS_ARRAY_SIZE ARRAY_SIZE(ena_srd_stats_strings)
static SYSCTL_NODE(_hw, OID_AUTO, ena, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
"ENA driver parameters");
/*
* Logging level for changing verbosity of the output
*/
int ena_log_level = ENA_INFO;
SYSCTL_INT(_hw_ena, OID_AUTO, log_level, CTLFLAG_RWTUN, &ena_log_level, 0,
"Logging level indicating verbosity of the logs");
SYSCTL_CONST_STRING(_hw_ena, OID_AUTO, driver_version, CTLFLAG_RD,
ENA_DRV_MODULE_VERSION, "ENA driver version");
/*
* Use 9k mbufs for the Rx buffers. Default to 0 (use page size mbufs instead).
* Using 9k mbufs in low memory conditions might cause allocation to take a lot
* of time and lead to the OS instability as it needs to look for the contiguous
* pages.
* However, page size mbufs has a bit smaller throughput than 9k mbufs, so if
* the network performance is the priority, the 9k mbufs can be used.
*/
int ena_enable_9k_mbufs = 0;
SYSCTL_INT(_hw_ena, OID_AUTO, enable_9k_mbufs, CTLFLAG_RDTUN,
&ena_enable_9k_mbufs, 0, "Use 9 kB mbufs for Rx descriptors");
/*
* Force the driver to use large or regular LLQ (Low Latency Queue) header size.
* Defaults to ENA_LLQ_HEADER_SIZE_POLICY_DEFAULT. This option may be
* important for platforms, which often handle packet headers on Tx with total
* header size greater than 96B, as it may reduce the latency.
* It also reduces the maximum Tx queue size by half, so it may cause more Tx
* packet drops.
*/
int ena_force_large_llq_header = ENA_LLQ_HEADER_SIZE_POLICY_DEFAULT;
SYSCTL_INT(_hw_ena, OID_AUTO, force_large_llq_header, CTLFLAG_RDTUN,
&ena_force_large_llq_header, 0,
"Change default LLQ entry size received from the device\n");
int ena_rss_table_size = ENA_RX_RSS_TABLE_SIZE;
int ena_sysctl_allocate_customer_metrics_buffer(struct ena_adapter *adapter)
{
int rc = 0;
adapter->customer_metrics_array = malloc((sizeof(u64) * ENA_CUSTOMER_METRICS_ARRAY_SIZE),
M_DEVBUF, M_NOWAIT | M_ZERO);
if (unlikely(adapter->customer_metrics_array == NULL))
rc = ENOMEM;
return rc;
}
void
ena_sysctl_add_nodes(struct ena_adapter *adapter)
{
struct ena_com_dev *dev = adapter->ena_dev;
if (ena_com_get_cap(dev, ENA_ADMIN_CUSTOMER_METRICS))
ena_sysctl_add_customer_metrics(adapter);
else if (ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS))
ena_sysctl_add_eni_metrics(adapter);
if (ena_com_get_cap(adapter->ena_dev, ENA_ADMIN_ENA_SRD_INFO))
ena_sysctl_add_srd_info(adapter);
ena_sysctl_add_wd(adapter);
ena_sysctl_add_stats(adapter);
ena_sysctl_add_tuneables(adapter);
ena_sysctl_add_irq_affinity(adapter);
#ifndef RSS
ena_sysctl_add_rss(adapter);
#endif
}
static void
ena_sysctl_add_wd(struct ena_adapter *adapter)
{
device_t dev;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
dev = adapter->pdev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
/* Sysctl calls for Watchdog service */
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "wd_active", CTLFLAG_RWTUN,
&adapter->wd_active, 0, "Watchdog is active");
SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "keep_alive_timeout",
CTLFLAG_RWTUN, &adapter->keep_alive_timeout,
"Timeout for Keep Alive messages");
SYSCTL_ADD_QUAD(ctx, child, OID_AUTO, "missing_tx_timeout",
CTLFLAG_RWTUN, &adapter->missing_tx_timeout,
"Timeout for TX completion");
SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_max_queues",
CTLFLAG_RWTUN, &adapter->missing_tx_max_queues, 0,
"Number of TX queues to check per run");
SYSCTL_ADD_U32(ctx, child, OID_AUTO, "missing_tx_threshold",
CTLFLAG_RWTUN, &adapter->missing_tx_threshold, 0,
"Max number of timeouted packets");
}
static void
ena_sysctl_add_stats(struct ena_adapter *adapter)
{
device_t dev;
struct ena_ring *tx_ring;
struct ena_ring *rx_ring;
struct ena_hw_stats *hw_stats;
struct ena_stats_dev *dev_stats;
struct ena_stats_tx *tx_stats;
struct ena_stats_rx *rx_stats;
struct ena_com_stats_admin *admin_stats;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
struct sysctl_oid *queue_node, *tx_node, *rx_node, *hw_node;
struct sysctl_oid *admin_node;
struct sysctl_oid_list *queue_list, *tx_list, *rx_list, *hw_list;
struct sysctl_oid_list *admin_list;
#define QUEUE_NAME_LEN 32
char namebuf[QUEUE_NAME_LEN];
int i;
dev = adapter->pdev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
tx_ring = adapter->tx_ring;
rx_ring = adapter->rx_ring;
hw_stats = &adapter->hw_stats;
dev_stats = &adapter->dev_stats;
admin_stats = &adapter->ena_dev->admin_queue.stats;
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "wd_expired", CTLFLAG_RD,
&dev_stats->wd_expired, "Watchdog expiry count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_up", CTLFLAG_RD,
&dev_stats->interface_up, "Network interface up count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "interface_down", CTLFLAG_RD,
&dev_stats->interface_down, "Network interface down count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "admin_q_pause", CTLFLAG_RD,
&dev_stats->admin_q_pause, "Admin queue pauses");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "os_trigger", CTLFLAG_RD,
&dev_stats->os_trigger, "OS trigger count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "missing_tx_cmpl", CTLFLAG_RD,
&dev_stats->missing_tx_cmpl, "Missing TX completions resets count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "bad_rx_req_id", CTLFLAG_RD,
&dev_stats->bad_rx_req_id, "Bad RX req id count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "bad_tx_req_id", CTLFLAG_RD,
&dev_stats->bad_tx_req_id, "Bad TX req id count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "bad_rx_desc_num", CTLFLAG_RD,
&dev_stats->bad_rx_desc_num, "Bad RX descriptors number count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "invalid_state", CTLFLAG_RD,
&dev_stats->invalid_state, "Driver invalid state count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "missing_intr", CTLFLAG_RD,
&dev_stats->missing_intr, "Missing interrupt count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "tx_desc_malformed", CTLFLAG_RD,
&dev_stats->tx_desc_malformed, "TX descriptors malformed count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "rx_desc_malformed", CTLFLAG_RD,
&dev_stats->rx_desc_malformed, "RX descriptors malformed count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "missing_admin_interrupt", CTLFLAG_RD,
&dev_stats->missing_admin_interrupt, "Missing admin interrupts count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "admin_to", CTLFLAG_RD,
&dev_stats->admin_to, "Admin queue timeouts count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "device_request_reset", CTLFLAG_RD,
&dev_stats->device_request_reset, "Device reset requests count");
SYSCTL_ADD_COUNTER_U64(ctx, child, OID_AUTO, "total_resets", CTLFLAG_RD,
&dev_stats->total_resets, "Total resets count");
for (i = 0; i < adapter->num_io_queues; ++i, ++tx_ring, ++rx_ring) {
snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Queue Name");
queue_list = SYSCTL_CHILDREN(queue_node);
adapter->que[i].oid = queue_node;
#ifdef RSS
/* Common stats */
SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "cpu", CTLFLAG_RD,
&adapter->que[i].cpu, 0, "CPU affinity");
SYSCTL_ADD_INT(ctx, queue_list, OID_AUTO, "domain", CTLFLAG_RD,
&adapter->que[i].domain, 0, "NUMA domain");
#endif
/* TX specific stats */
tx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO, "tx_ring",
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "TX ring");
tx_list = SYSCTL_CHILDREN(tx_node);
tx_stats = &tx_ring->tx_stats;
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, "count",
CTLFLAG_RD, &tx_stats->cnt, "Packets sent");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, "bytes",
CTLFLAG_RD, &tx_stats->bytes, "Bytes sent");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
"prepare_ctx_err", CTLFLAG_RD, &tx_stats->prepare_ctx_err,
"TX buffer preparation failures");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
"dma_mapping_err", CTLFLAG_RD, &tx_stats->dma_mapping_err,
"DMA mapping failures");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, "doorbells",
CTLFLAG_RD, &tx_stats->doorbells, "Queue doorbells");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
"missing_tx_comp", CTLFLAG_RD, &tx_stats->missing_tx_comp,
"TX completions missed");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, "bad_req_id",
CTLFLAG_RD, &tx_stats->bad_req_id, "Bad request id count");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, "mbuf_collapses",
CTLFLAG_RD, &tx_stats->collapse, "Mbuf collapse count");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
"mbuf_collapse_err", CTLFLAG_RD, &tx_stats->collapse_err,
"Mbuf collapse failures");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, "queue_wakeups",
CTLFLAG_RD, &tx_stats->queue_wakeup, "Queue wakeups");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO, "queue_stops",
CTLFLAG_RD, &tx_stats->queue_stop, "Queue stops");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
"llq_buffer_copy", CTLFLAG_RD, &tx_stats->llq_buffer_copy,
"Header copies for llq transaction");
SYSCTL_ADD_COUNTER_U64(ctx, tx_list, OID_AUTO,
"unmask_interrupt_num", CTLFLAG_RD,
&tx_stats->unmask_interrupt_num,
"Unmasked interrupt count");
/* RX specific stats */
rx_node = SYSCTL_ADD_NODE(ctx, queue_list, OID_AUTO, "rx_ring",
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "RX ring");
rx_list = SYSCTL_CHILDREN(rx_node);
rx_stats = &rx_ring->rx_stats;
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "count",
CTLFLAG_RD, &rx_stats->cnt, "Packets received");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "bytes",
CTLFLAG_RD, &rx_stats->bytes, "Bytes received");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "refil_partial",
CTLFLAG_RD, &rx_stats->refil_partial,
"Partial refilled mbufs");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "csum_bad",
CTLFLAG_RD, &rx_stats->csum_bad, "Bad RX checksum");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
"mbuf_alloc_fail", CTLFLAG_RD, &rx_stats->mbuf_alloc_fail,
"Failed mbuf allocs");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
"mjum_alloc_fail", CTLFLAG_RD, &rx_stats->mjum_alloc_fail,
"Failed jumbo mbuf allocs");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO,
"dma_mapping_err", CTLFLAG_RD, &rx_stats->dma_mapping_err,
"DMA mapping errors");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "bad_desc_num",
CTLFLAG_RD, &rx_stats->bad_desc_num,
"Bad descriptor count");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "bad_req_id",
CTLFLAG_RD, &rx_stats->bad_req_id, "Bad request id count");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "empty_rx_ring",
CTLFLAG_RD, &rx_stats->empty_rx_ring,
"RX descriptors depletion count");
SYSCTL_ADD_COUNTER_U64(ctx, rx_list, OID_AUTO, "csum_good",
CTLFLAG_RD, &rx_stats->csum_good,
"Valid RX checksum calculations");
}
/* Stats read from device */
hw_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "hw_stats",
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Statistics from hardware");
hw_list = SYSCTL_CHILDREN(hw_node);
SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_packets", CTLFLAG_RD,
&hw_stats->rx_packets, "Packets received");
SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_packets", CTLFLAG_RD,
&hw_stats->tx_packets, "Packets transmitted");
SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_bytes", CTLFLAG_RD,
&hw_stats->rx_bytes, "Bytes received");
SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_bytes", CTLFLAG_RD,
&hw_stats->tx_bytes, "Bytes transmitted");
SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "rx_drops", CTLFLAG_RD,
&hw_stats->rx_drops, "Receive packet drops");
SYSCTL_ADD_COUNTER_U64(ctx, hw_list, OID_AUTO, "tx_drops", CTLFLAG_RD,
&hw_stats->tx_drops, "Transmit packet drops");
/* ENA Admin queue stats */
admin_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "admin_stats",
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ENA Admin Queue statistics");
admin_list = SYSCTL_CHILDREN(admin_node);
SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "aborted_cmd", CTLFLAG_RD,
&admin_stats->aborted_cmd, 0, "Aborted commands");
SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "sumbitted_cmd", CTLFLAG_RD,
&admin_stats->submitted_cmd, 0, "Submitted commands");
SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "completed_cmd", CTLFLAG_RD,
&admin_stats->completed_cmd, 0, "Completed commands");
SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "out_of_space", CTLFLAG_RD,
&admin_stats->out_of_space, 0, "Queue out of space");
SYSCTL_ADD_U64(ctx, admin_list, OID_AUTO, "no_completion", CTLFLAG_RD,
&admin_stats->no_completion, 0, "Commands not completed");
}
static void
ena_sysctl_add_srd_info(struct ena_adapter *adapter)
{
device_t dev;
struct sysctl_oid *ena_srd_info;
struct sysctl_oid_list *srd_list;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
struct ena_admin_ena_srd_stats *srd_stats_ptr;
struct ena_srd_metrics cur_stat_strings;
int i;
dev = adapter->pdev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
ena_srd_info = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "ena_srd_info",
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ENA's SRD information");
srd_list = SYSCTL_CHILDREN(ena_srd_info);
SYSCTL_ADD_U64(ctx, srd_list, OID_AUTO, "ena_srd_mode",
CTLFLAG_RD, &adapter->ena_srd_info.flags, 0,
"Describes which ENA-express features are enabled");
srd_stats_ptr = &adapter->ena_srd_info.ena_srd_stats;
for (i = 0 ; i < ENA_SRD_METRICS_ARRAY_SIZE; i++) {
cur_stat_strings = ena_srd_stats_strings[i];
SYSCTL_ADD_U64(ctx, srd_list, OID_AUTO, cur_stat_strings.name,
CTLFLAG_RD, (u64 *)srd_stats_ptr + cur_stat_strings.stat_offset,
0, cur_stat_strings.description);
}
}
static void
ena_sysctl_add_customer_metrics(struct ena_adapter *adapter)
{
device_t dev;
struct ena_com_dev *ena_dev;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
struct sysctl_oid *customer_metric;
struct sysctl_oid_list *customer_list;
int i;
dev = adapter->pdev;
ena_dev = adapter->ena_dev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
customer_metric = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "customer_metrics",
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ENA's customer metrics");
customer_list = SYSCTL_CHILDREN(customer_metric);
for (i = 0; i < ENA_CUSTOMER_METRICS_ARRAY_SIZE; i++) {
if (ena_com_get_customer_metric_support(ena_dev, i)) {
SYSCTL_ADD_U64(ctx, customer_list, OID_AUTO, ena_hw_stats_strings[i].name,
CTLFLAG_RD, &adapter->customer_metrics_array[i], 0,
ena_hw_stats_strings[i].description);
}
}
}
static void
ena_sysctl_add_eni_metrics(struct ena_adapter *adapter)
{
device_t dev;
struct ena_admin_eni_stats *eni_metrics;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
struct sysctl_oid *eni_node;
struct sysctl_oid_list *eni_list;
dev = adapter->pdev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
eni_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "eni_metrics",
CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ENA's ENI metrics");
eni_list = SYSCTL_CHILDREN(eni_node);
eni_metrics = &adapter->eni_metrics;
SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "bw_in_allowance_exceeded",
CTLFLAG_RD, &eni_metrics->bw_in_allowance_exceeded, 0,
"Inbound BW allowance exceeded");
SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "bw_out_allowance_exceeded",
CTLFLAG_RD, &eni_metrics->bw_out_allowance_exceeded, 0,
"Outbound BW allowance exceeded");
SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "pps_allowance_exceeded",
CTLFLAG_RD, &eni_metrics->pps_allowance_exceeded, 0,
"PPS allowance exceeded");
SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "conntrack_allowance_exceeded",
CTLFLAG_RD, &eni_metrics->conntrack_allowance_exceeded, 0,
"Connection tracking allowance exceeded");
SYSCTL_ADD_U64(ctx, eni_list, OID_AUTO, "linklocal_allowance_exceeded",
CTLFLAG_RD, &eni_metrics->linklocal_allowance_exceeded, 0,
"Linklocal packet rate allowance exceeded");
}
static void
ena_sysctl_add_tuneables(struct ena_adapter *adapter)
{
device_t dev;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
dev = adapter->pdev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
/* Tuneable number of buffers in the buf-ring (drbr) */
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size",
CTLTYPE_U32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_buf_ring_size, "I",
"Size of the Tx buffer ring (drbr).");
/* Tuneable number of the Rx ring size */
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size",
CTLTYPE_U32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_rx_queue_size, "I",
"Size of the Rx ring. The size should be a power of 2.");
/* Tuneable number of IO queues */
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "io_queues_nb",
CTLTYPE_U32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_io_queues_nb, "I", "Number of IO queues.");
/*
* Tuneable, which determines how often ENA metrics will be read.
* 0 means it's turned off. Maximum allowed value is limited by:
* ENA_METRICS_MAX_SAMPLE_INTERVAL.
*/
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "stats_sample_interval",
CTLTYPE_U16 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_metrics_interval, "SU",
"Interval in seconds for updating Netword interface metrics. 0 turns off the update.");
}
/* Kernel option RSS prevents manipulation of key hash and indirection table. */
#ifndef RSS
static void
ena_sysctl_add_rss(struct ena_adapter *adapter)
{
device_t dev;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
dev = adapter->pdev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
/* RSS options */
tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "rss",
CTLFLAG_RW | CTLFLAG_MPSAFE, NULL, "Receive Side Scaling options.");
child = SYSCTL_CHILDREN(tree);
/* RSS hash key */
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "key",
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_rss_key, "A", "RSS key.");
/* Tuneable RSS indirection table */
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "indir_table",
CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_rss_indir_table, "A", "RSS indirection table.");
/* RSS indirection table size */
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "indir_table_size",
CTLFLAG_RD | CTLFLAG_MPSAFE, &ena_rss_table_size, 0,
"RSS indirection table size.");
}
#endif /* RSS */
static void
ena_sysctl_add_irq_affinity(struct ena_adapter *adapter)
{
device_t dev;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
dev = adapter->pdev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "irq_affinity",
CTLFLAG_RW | CTLFLAG_MPSAFE, NULL, "Decide base CPU and stride for irqs affinity.");
child = SYSCTL_CHILDREN(tree);
/* Add base cpu leaf */
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "base_cpu",
CTLTYPE_S32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_irq_base_cpu, "I", "Base cpu index for setting irq affinity.");
/* Add cpu stride leaf */
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "cpu_stride",
CTLTYPE_S32 | CTLFLAG_RW | CTLFLAG_MPSAFE, adapter, 0,
ena_sysctl_irq_cpu_stride, "I", "Distance between irqs when setting affinity.");
}
/*
* ena_sysctl_update_queue_node_nb - Register/unregister sysctl queue nodes.
*
* Whether the nodes are registered or unregistered depends on a delta between
* the `old` and `new` parameters, representing the number of queues.
*
* This function is used to hide sysctl attributes for queue nodes which aren't
* currently used by the HW (e.g. after a call to `ena_sysctl_io_queues_nb`).
*
* NOTE:
* All unregistered nodes must be registered again at detach, i.e. by a call to
* this function.
*/
void
ena_sysctl_update_queue_node_nb(struct ena_adapter *adapter, int old, int new)
{
struct sysctl_oid *oid;
int min, max, i;
min = MIN(old, new);
max = MIN(MAX(old, new), adapter->max_num_io_queues);
for (i = min; i < max; ++i) {
oid = adapter->que[i].oid;
sysctl_wlock();
if (old > new)
sysctl_unregister_oid(oid);
else
sysctl_register_oid(oid);
sysctl_wunlock();
}
}
static int
ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS)
{
struct ena_adapter *adapter = arg1;
uint32_t val;
int error;
ENA_LOCK_LOCK();
if (unlikely(!ENA_FLAG_ISSET(ENA_FLAG_DEVICE_RUNNING, adapter))) {
error = EINVAL;
goto unlock;
}
val = 0;
error = sysctl_wire_old_buffer(req, sizeof(val));
if (error == 0) {
val = adapter->buf_ring_size;
error = sysctl_handle_32(oidp, &val, 0, req);
}
if (error != 0 || req->newptr == NULL)
goto unlock;
if (!powerof2(val) || val == 0) {
ena_log(adapter->pdev, ERR,
"Requested new Tx buffer ring size (%u) is not a power of 2\n",
val);
error = EINVAL;
goto unlock;
}
if (val != adapter->buf_ring_size) {
ena_log(adapter->pdev, INFO,
"Requested new Tx buffer ring size: %d. Old size: %d\n",
val, adapter->buf_ring_size);
error = ena_update_buf_ring_size(adapter, val);
} else {
ena_log(adapter->pdev, ERR,
"New Tx buffer ring size is the same as already used: %u\n",
adapter->buf_ring_size);
}
unlock:
ENA_LOCK_UNLOCK();
return (error);
}
static int
ena_sysctl_rx_queue_size(SYSCTL_HANDLER_ARGS)
{
struct ena_adapter *adapter = arg1;
uint32_t val;
int error;
ENA_LOCK_LOCK();
if (unlikely(!ENA_FLAG_ISSET(ENA_FLAG_DEVICE_RUNNING, adapter))) {
error = EINVAL;
goto unlock;
}
val = 0;
error = sysctl_wire_old_buffer(req, sizeof(val));
if (error == 0) {
val = adapter->requested_rx_ring_size;
error = sysctl_handle_32(oidp, &val, 0, req);
}
if (error != 0 || req->newptr == NULL)
goto unlock;
if (val < ENA_MIN_RING_SIZE || val > adapter->max_rx_ring_size) {
ena_log(adapter->pdev, ERR,
"Requested new Rx queue size (%u) is out of range: [%u, %u]\n",
val, ENA_MIN_RING_SIZE, adapter->max_rx_ring_size);
error = EINVAL;
goto unlock;
}
/* Check if the parameter is power of 2 */
if (!powerof2(val)) {
ena_log(adapter->pdev, ERR,
"Requested new Rx queue size (%u) is not a power of 2\n",
val);
error = EINVAL;
goto unlock;
}
if (val != adapter->requested_rx_ring_size) {
ena_log(adapter->pdev, INFO,
"Requested new Rx queue size: %u. Old size: %u\n", val,
adapter->requested_rx_ring_size);
error = ena_update_queue_size(adapter,
adapter->requested_tx_ring_size, val);
} else {
ena_log(adapter->pdev, ERR,
"New Rx queue size is the same as already used: %u\n",
adapter->requested_rx_ring_size);
}
unlock:
ENA_LOCK_UNLOCK();
return (error);
}
/*
* Change number of effectively used IO queues adapter->num_io_queues
*/
static int
ena_sysctl_io_queues_nb(SYSCTL_HANDLER_ARGS)
{
struct ena_adapter *adapter = arg1;
uint32_t old_num_queues, tmp = 0;
int error;
ENA_LOCK_LOCK();
if (unlikely(!ENA_FLAG_ISSET(ENA_FLAG_DEVICE_RUNNING, adapter))) {
error = EINVAL;
goto unlock;
}
error = sysctl_wire_old_buffer(req, sizeof(tmp));
if (error == 0) {
tmp = adapter->num_io_queues;
error = sysctl_handle_int(oidp, &tmp, 0, req);
}
if (error != 0 || req->newptr == NULL)
goto unlock;
if (tmp == 0) {
ena_log(adapter->pdev, ERR,
"Requested number of IO queues is zero\n");
error = EINVAL;
goto unlock;
}
/*
* The adapter::max_num_io_queues is the HW capability. The system
* resources availability may potentially be a tighter limit. Therefore
* the relation `adapter::max_num_io_queues >= adapter::msix_vecs`
* always holds true, while the `adapter::msix_vecs` is variable across
* device reset (`ena_destroy_device()` + `ena_restore_device()`).
*/
if (tmp > (adapter->msix_vecs - ENA_ADMIN_MSIX_VEC)) {
ena_log(adapter->pdev, ERR,
"Requested number of IO queues is higher than maximum allowed (%u)\n",
adapter->msix_vecs - ENA_ADMIN_MSIX_VEC);
error = EINVAL;
goto unlock;
}
if (tmp == adapter->num_io_queues) {
ena_log(adapter->pdev, ERR,
"Requested number of IO queues is equal to current value "
"(%u)\n",
adapter->num_io_queues);
} else {
ena_log(adapter->pdev, INFO,
"Requested new number of IO queues: %u, current value: "
"%u\n",
tmp, adapter->num_io_queues);
old_num_queues = adapter->num_io_queues;
error = ena_update_io_queue_nb(adapter, tmp);
if (error != 0)
return (error);
ena_sysctl_update_queue_node_nb(adapter, old_num_queues, tmp);
}
unlock:
ENA_LOCK_UNLOCK();
return (error);
}
static int
ena_sysctl_metrics_interval(SYSCTL_HANDLER_ARGS)
{
struct ena_adapter *adapter = arg1;
uint16_t interval;
int error;
ENA_LOCK_LOCK();
if (unlikely(!ENA_FLAG_ISSET(ENA_FLAG_DEVICE_RUNNING, adapter))) {
error = EINVAL;
goto unlock;
}
error = sysctl_wire_old_buffer(req, sizeof(interval));
if (error == 0) {
interval = adapter->metrics_sample_interval;
error = sysctl_handle_16(oidp, &interval, 0, req);
}
if (error != 0 || req->newptr == NULL)
goto unlock;
if (interval > ENA_METRICS_MAX_SAMPLE_INTERVAL) {
ena_log(adapter->pdev, ERR,
"ENA metrics update interval is out of range - maximum allowed value: %d seconds\n",
ENA_METRICS_MAX_SAMPLE_INTERVAL);
error = EINVAL;
goto unlock;
}
if (interval == 0) {
ena_log(adapter->pdev, INFO,
"ENA metrics update is now turned off\n");
bzero(&adapter->eni_metrics, sizeof(adapter->eni_metrics));
} else {
ena_log(adapter->pdev, INFO,
"ENA metrics update interval is set to: %" PRIu16
" seconds\n",
interval);
}
adapter->metrics_sample_interval = interval;
unlock:
ENA_LOCK_UNLOCK();
return (0);
}
static int
ena_sysctl_irq_base_cpu(SYSCTL_HANDLER_ARGS)
{
struct ena_adapter *adapter = arg1;
int irq_base_cpu = 0;
int error;
ENA_LOCK_LOCK();
if (unlikely(!ENA_FLAG_ISSET(ENA_FLAG_DEVICE_RUNNING, adapter))) {
error = ENODEV;
goto unlock;
}
error = sysctl_wire_old_buffer(req, sizeof(irq_base_cpu));
if (error == 0) {
irq_base_cpu = adapter->irq_cpu_base;
error = sysctl_handle_int(oidp, &irq_base_cpu, 0, req);
}
if (error != 0 || req->newptr == NULL)
goto unlock;
if (irq_base_cpu <= ENA_BASE_CPU_UNSPECIFIED) {
ena_log(adapter->pdev, ERR,
"Requested base CPU is less than zero.\n");
error = EINVAL;
goto unlock;
}
if (irq_base_cpu > mp_ncpus) {
ena_log(adapter->pdev, INFO,
"Requested base CPU is larger than the number of available CPUs. \n");
error = EINVAL;
goto unlock;
}
if (irq_base_cpu == adapter->irq_cpu_base) {
ena_log(adapter->pdev, INFO,
"Requested IRQ base CPU is equal to current value "
"(%d)\n",
adapter->irq_cpu_base);
goto unlock;
}
ena_log(adapter->pdev, INFO,
"Requested new IRQ base CPU: %d, current value: %d\n",
irq_base_cpu, adapter->irq_cpu_base);
error = ena_update_base_cpu(adapter, irq_base_cpu);
unlock:
ENA_LOCK_UNLOCK();
return (error);
}
static int
ena_sysctl_irq_cpu_stride(SYSCTL_HANDLER_ARGS)
{
struct ena_adapter *adapter = arg1;
int32_t irq_cpu_stride = 0;
int error;
ENA_LOCK_LOCK();
if (unlikely(!ENA_FLAG_ISSET(ENA_FLAG_DEVICE_RUNNING, adapter))) {
error = ENODEV;
goto unlock;
}