[dpdk-dev] [PATCH v3] net/avp: remove resources when port is closed
Allain Legacy
allain.legacy at windriver.com
Tue Jun 18 21:18:59 CEST 2019
The rte_eth_dev_close() function now handles freeing resources for
devices (e.g., mac_addrs). To conform with the new close() behaviour we
are asserting the RTE_ETH_DEV_CLOSE_REMOVE flag so that
rte_eth_dev_close() releases all device level dynamic memory.
Second level memory allocated to each individual rx/tx queue is now
freed as part of the close() operation therefore making it safe for the
rte_eth_dev_close() function to free the device private data without
orphaning the rx/tx queue pointers.
Cc: Matt Peters <matt.peters at windriver.com>
Signed-off-by: Allain Legacy <allain.legacy at windriver.com>
---
drivers/net/avp/avp_ethdev.c | 52 ++++++++++++++++++++++++++++++++++++--------
1 file changed, 43 insertions(+), 9 deletions(-)
diff --git a/drivers/net/avp/avp_ethdev.c b/drivers/net/avp/avp_ethdev.c
index 57af5158d..47b96eca0 100644
--- a/drivers/net/avp/avp_ethdev.c
+++ b/drivers/net/avp/avp_ethdev.c
@@ -959,6 +959,8 @@ eth_avp_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->dev_ops = &avp_eth_dev_ops;
eth_dev->rx_pkt_burst = &avp_recv_pkts;
eth_dev->tx_pkt_burst = &avp_xmit_pkts;
+ /* Let rte_eth_dev_close() release the port resources */
+ eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
/*
@@ -1023,19 +1025,13 @@ eth_avp_dev_init(struct rte_eth_dev *eth_dev)
static int
eth_avp_dev_uninit(struct rte_eth_dev *eth_dev)
{
- int ret;
-
if (rte_eal_process_type() != RTE_PROC_PRIMARY)
return -EPERM;
if (eth_dev->data == NULL)
return 0;
- ret = avp_dev_disable_interrupts(eth_dev);
- if (ret != 0) {
- PMD_DRV_LOG(ERR, "Failed to disable interrupts, ret=%d\n", ret);
- return ret;
- }
+ avp_dev_close(eth_dev);
return 0;
}
@@ -1941,8 +1937,25 @@ avp_dev_rx_queue_release(void *rx_queue)
unsigned int i;
for (i = 0; i < avp->num_rx_queues; i++) {
- if (data->rx_queues[i] == rxq)
+ if (data->rx_queues[i] == rxq) {
+ rte_free(data->rx_queues[i]);
+ data->rx_queues[i] = NULL;
+ }
+ }
+}
+
+static void
+avp_dev_rx_queue_release_all(struct rte_eth_dev *eth_dev)
+{
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+ struct rte_eth_dev_data *data = avp->dev_data;
+ unsigned int i;
+
+ for (i = 0; i < avp->num_rx_queues; i++) {
+ if (data->rx_queues[i]) {
+ rte_free(data->rx_queues[i]);
data->rx_queues[i] = NULL;
+ }
}
}
@@ -1955,8 +1968,25 @@ avp_dev_tx_queue_release(void *tx_queue)
unsigned int i;
for (i = 0; i < avp->num_tx_queues; i++) {
- if (data->tx_queues[i] == txq)
+ if (data->tx_queues[i] == txq) {
+ rte_free(data->tx_queues[i]);
+ data->tx_queues[i] = NULL;
+ }
+ }
+}
+
+static void
+avp_dev_tx_queue_release_all(struct rte_eth_dev *eth_dev)
+{
+ struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
+ struct rte_eth_dev_data *data = avp->dev_data;
+ unsigned int i;
+
+ for (i = 0; i < avp->num_tx_queues; i++) {
+ if (data->tx_queues[i]) {
+ rte_free(data->tx_queues[i]);
data->tx_queues[i] = NULL;
+ }
}
}
@@ -2105,6 +2135,10 @@ avp_dev_close(struct rte_eth_dev *eth_dev)
/* continue */
}
+ /* release dynamic storage for rx/tx queues */
+ avp_dev_rx_queue_release_all(eth_dev);
+ avp_dev_tx_queue_release_all(eth_dev);
+
unlock:
rte_spinlock_unlock(&avp->lock);
}
--
2.12.1
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