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ena: Add support for device request reset message over AENQ

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This commit adds a handler for the new aenq message
ENA_ADMIN_DEVICE_REQUEST_RESET,
which in turn causes the driver to trigger reset of a new type:
ENA_REGS_RESET_DEVICE_REQUEST. Also adds counting of such occurrences in
a new statistic for it.

Approved by: cperciva (mentor)
Sponsored by: Amazon, Inc.

(cherry picked from commit 705879424bc76fcc925e78eb7643dbf4bd9a11eb)
This commit is contained in:
Osama Abboud 2024-08-07 06:24:21 +00:00 committed by Osama Abboud
parent 9aa14351c1
commit ebb857f4ce
3 changed files with 16 additions and 1 deletions
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13
sys/dev/ena/ena.c
View file

@ -2990,7 +2990,8 @@ ena_device_init(struct ena_adapter *adapter, device_t pdev,
BIT(ENA_ADMIN_WARNING) |
BIT(ENA_ADMIN_NOTIFICATION) |
BIT(ENA_ADMIN_KEEP_ALIVE) |
BIT(ENA_ADMIN_CONF_NOTIFICATIONS);
BIT(ENA_ADMIN_CONF_NOTIFICATIONS) |
BIT(ENA_ADMIN_DEVICE_REQUEST_RESET);
aenq_groups &= get_feat_ctx->aenq.supported_groups;
rc = ena_com_set_aenq_config(ena_dev, aenq_groups);
@ -4195,12 +4196,22 @@ static void ena_conf_notification(void *adapter_data,
}
}
static void ena_admin_device_request_reset(void *adapter_data,
struct ena_admin_aenq_entry *aenq_e)
{
struct ena_adapter *adapter = (struct ena_adapter *)adapter_data;
ena_log(adapter->pdev, WARN,
"The device has detected an unhealthy state, reset is requested\n");
ena_trigger_reset(adapter, ENA_REGS_RESET_DEVICE_REQUEST);
}
static struct ena_aenq_handlers aenq_handlers = {
.handlers = {
[ENA_ADMIN_LINK_CHANGE] = ena_update_on_link_change,
[ENA_ADMIN_NOTIFICATION] = ena_notification,
[ENA_ADMIN_KEEP_ALIVE] = ena_keep_alive_wd,
[ENA_ADMIN_CONF_NOTIFICATIONS] = ena_conf_notification,
[ENA_ADMIN_DEVICE_REQUEST_RESET] = ena_admin_device_request_reset,
},
.unimplemented_handler = unimplemented_aenq_handler
};

2
sys/dev/ena/ena.h
View file

@ -396,6 +396,7 @@ struct ena_stats_dev {
counter_u64_t rx_desc_malformed;
counter_u64_t missing_admin_interrupt;
counter_u64_t admin_to;
counter_u64_t device_request_reset;
};
struct ena_hw_stats {
@ -558,6 +559,7 @@ static const struct ena_reset_stats_offset resets_to_stats_offset_map[ENA_REGS_R
ENA_RESET_STATS_ENTRY(ENA_REGS_RESET_TX_DESCRIPTOR_MALFORMED, tx_desc_malformed),
ENA_RESET_STATS_ENTRY(ENA_REGS_RESET_RX_DESCRIPTOR_MALFORMED, rx_desc_malformed),
ENA_RESET_STATS_ENTRY(ENA_REGS_RESET_MISSING_ADMIN_INTERRUPT, missing_admin_interrupt),
ENA_RESET_STATS_ENTRY(ENA_REGS_RESET_DEVICE_REQUEST, device_request_reset),
};
int ena_up(struct ena_adapter *adapter);

2
sys/dev/ena/ena_sysctl.c
View file

@ -301,6 +301,8 @@ ena_sysctl_add_stats(struct ena_adapter *adapter)
&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");