[dpdk-dev] [PATCH] bond: use existing enslaved device queues
Eric Kinzie
ehkinzie at gmail.com
Thu Mar 24 22:59:58 CET 2016
This solves issues when an active device is added to a bond.
If a device to be enslaved already has transmit and/or receive queues
allocated, use those and then create any additional queues that are
necessary.
Fixes: 2efb58cbab6e ("bond: new link bonding library")
Signed-off-by: Eric Kinzie <ehkinzie at gmail.com>
---
drivers/net/bonding/rte_eth_bond_pmd.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index 011150a..7472e9d 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -1305,6 +1305,8 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
struct bond_rx_queue *bd_rx_q;
struct bond_tx_queue *bd_tx_q;
+ uint16_t old_nb_tx_queues = slave_eth_dev->data->nb_tx_queues;
+ uint16_t old_nb_rx_queues = slave_eth_dev->data->nb_rx_queues;
int errval;
uint16_t q_id;
@@ -1345,7 +1347,9 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
}
/* Setup Rx Queues */
- for (q_id = 0; q_id < bonded_eth_dev->data->nb_rx_queues; q_id++) {
+ /* Use existing queues, if any */
+ for (q_id = old_nb_rx_queues;
+ q_id < bonded_eth_dev->data->nb_rx_queues; q_id++) {
bd_rx_q = (struct bond_rx_queue *)bonded_eth_dev->data->rx_queues[q_id];
errval = rte_eth_rx_queue_setup(slave_eth_dev->data->port_id, q_id,
@@ -1361,7 +1365,9 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
}
/* Setup Tx Queues */
- for (q_id = 0; q_id < bonded_eth_dev->data->nb_tx_queues; q_id++) {
+ /* Use existing queues, if any */
+ for (q_id = old_nb_tx_queues;
+ q_id < bonded_eth_dev->data->nb_tx_queues; q_id++) {
bd_tx_q = (struct bond_tx_queue *)bonded_eth_dev->data->tx_queues[q_id];
errval = rte_eth_tx_queue_setup(slave_eth_dev->data->port_id, q_id,
--
1.7.10.4
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