This is a helper for DPDK internal users to force a reconfiguration of a
device.
Signed-off-by: Jan Blunck <jblunck at infradead.org>
---
lib/librte_ether/rte_ethdev.c | 15 +++++++++++++++
lib/librte_ether/rte_ethdev.h | 13 +++++++++++++
lib/librte_ether/rte_ether_version.map | 6 ++++++
3 files changed, 34 insertions(+)
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index a3986ad..bd5787b 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -858,6 +858,21 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q,
uint16_t nb_tx_q,
return 0;
}
+void
+_rte_eth_dev_reset(struct rte_eth_dev *dev)
+{
+ if (dev->data->dev_started) {
+ RTE_PMD_DEBUG_TRACE(
+ "port %d must be stopped to allow reset\n", port_id);
+ return;
+ }
+
+ rte_eth_dev_rx_queue_config(dev, 0);
+ rte_eth_dev_tx_queue_config(dev, 0);
+
+ memset(&dev->data->dev_conf, 0, sizeof(dev->data->dev_conf));
+}
+
static void
rte_eth_dev_config_restore(uint8_t port_id)
{
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 9678179..e0740db 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1914,6 +1914,19 @@ int rte_eth_dev_configure(uint8_t port_id, uint16_t
nb_rx_queue,
uint16_t nb_tx_queue, const struct rte_eth_conf *eth_conf);
/**
+ * @internal Release a devices rx/tx queues and clear its configuration to
+ * force the user application to reconfigure it. It is for DPDK internal user
+ * only.
+ *
+ * @param dev
+ * Pointer to struct rte_eth_dev.
+ *
+ * @return
+ * void
+ */
+void _rte_eth_dev_reset(struct rte_eth_dev *dev);
+
+/**
* Allocate and set up a receive queue for an Ethernet device.
*
* The function allocates a contiguous block of memory for *nb_rx_desc*
diff --git a/lib/librte_ether/rte_ether_version.map
b/lib/librte_ether/rte_ether_version.map
index 72be66d..0c31c5d 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -147,3 +147,9 @@ DPDK_16.11 {
rte_eth_dev_pci_remove;
} DPDK_16.07;
+
+DPDK_17.02 {
+ global:
+
+ _rte_eth_dev_reset;
+} DPDK_16.11;
--
2.7.4
