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net/ena: handle ENA notification

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When ENA notifications are provided ena_notification handler is called.
It checks if received value is not corrupted and if necessary it
reports proper warnings.

Data received from NIC is parsed in ena_update_hints. Fields for
storing those information was added to ena_adapter structure.

ENA notification are enabled by setting ENA_ADMIN_NOTIFICATION flag in
aenq_groups.

Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
This commit is contained in:
Rafal Kozik 2018-06-07 11:43:02 +02:00 committed by Ferruh Yigit
parent ca148440e0
commit f01f060cdd
1 changed files with 39 additions and 2 deletions
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41
drivers/net/ena/ena_ethdev.c
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@ -1290,7 +1290,8 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
goto err_admin_init;
}
aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE);
aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE) |
BIT(ENA_ADMIN_NOTIFICATION);
aenq_groups &= get_feat_ctx->aenq.supported_groups;
rc = ena_com_set_aenq_config(ena_dev, aenq_groups);
@ -1724,6 +1725,19 @@ eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
return i;
}
static void ena_update_hints(struct ena_adapter *adapter,
struct ena_admin_ena_hw_hints *hints)
{
if (hints->admin_completion_tx_timeout)
adapter->ena_dev.admin_queue.completion_timeout =
hints->admin_completion_tx_timeout * 1000;
if (hints->mmio_read_timeout)
/* convert to usec */
adapter->ena_dev.mmio_read.reg_read_to =
hints->mmio_read_timeout * 1000;
}
static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts)
{
@ -1918,6 +1932,29 @@ static void ena_update_on_link_change(void *adapter_data,
_rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
}
static void ena_notification(void *data,
struct ena_admin_aenq_entry *aenq_e)
{
struct ena_adapter *adapter = (struct ena_adapter *)data;
struct ena_admin_ena_hw_hints *hints;
if (aenq_e->aenq_common_desc.group != ENA_ADMIN_NOTIFICATION)
RTE_LOG(WARNING, PMD, "Invalid group(%x) expected %x\n",
aenq_e->aenq_common_desc.group,
ENA_ADMIN_NOTIFICATION);
switch (aenq_e->aenq_common_desc.syndrom) {
case ENA_ADMIN_UPDATE_HINTS:
hints = (struct ena_admin_ena_hw_hints *)
(&aenq_e->inline_data_w4);
ena_update_hints(adapter, hints);
break;
default:
RTE_LOG(ERR, PMD, "Invalid aenq notification link state %d\n",
aenq_e->aenq_common_desc.syndrom);
}
}
/**
* This handler will called for unknown event group or unimplemented handlers
**/
@ -1930,7 +1967,7 @@ static void unimplemented_aenq_handler(__rte_unused void *data,
static struct ena_aenq_handlers aenq_handlers = {
.handlers = {
[ENA_ADMIN_LINK_CHANGE] = ena_update_on_link_change,
[ENA_ADMIN_NOTIFICATION] = unimplemented_aenq_handler,
[ENA_ADMIN_NOTIFICATION] = ena_notification,
[ENA_ADMIN_KEEP_ALIVE] = unimplemented_aenq_handler
},
.unimplemented_handler = unimplemented_aenq_handler