DPDK patches and discussions
 help / color / mirror / Atom feed
* [dpdk-dev] [PATCH] bond: use existing enslaved device queues
@ 2016-03-24 21:59 Eric Kinzie
  2016-03-25 13:28 ` Iremonger, Bernard
  0 siblings, 1 reply; 3+ messages in thread
From: Eric Kinzie @ 2016-03-24 21:59 UTC (permalink / raw)
  To: dev; +Cc: tkiely, declan.doherty, bernard.iremonger, ekinzie

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@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

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2016-03-25 15:55 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-03-24 21:59 [dpdk-dev] [PATCH] bond: use existing enslaved device queues Eric Kinzie
2016-03-25 13:28 ` Iremonger, Bernard
2016-03-25 15:55   ` Bruce Richardson

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).