[dpdk-dev,v1,06/24] net/ena: handle ENA notification
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Commit Message
From: Rafal Kozik <rk@semihalf.com>
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>
---
drivers/net/ena/ena_ethdev.c | 41 +++++++++++++++++++++++++++++++++++++++--
1 file changed, 39 insertions(+), 2 deletions(-)
--
2.14.1
@@ -1305,7 +1305,8 @@ 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);
@@ -1781,6 +1782,19 @@ 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)
{
@@ -1976,6 +1990,29 @@ 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
**/
@@ -1988,7 +2025,7 @@ 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