Data Centre Bridge (DCB) configuration fails when SRIOV is
enabled if nb_rxq and nb_txq are not set to 1.
When dcb_mode is DCB_VT_ENABLED and max_vfs is greater than
zero, set nb_rxq and nb_txq to 1.
The failure occurs during configuration of the ixgbe PMD when
it is started, in the ixgbe_check_mq_mode function, if nb_rxq
and nb_txq are not set to 1.
Fixes: 2a977b891f99 ("app/testpmd: fix DCB configuration")
Signed-off-by: Bernard Iremonger <bernard.iremonger at intel.com>
Changes in v7:
restore nb_rxq and nb_txq setting when max_vfs is 0.
---
app/test-pmd/testpmd.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 6185be6..96f5011 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -2002,8 +2002,13 @@ init_port_dcb_config(portid_t pid,
* and has the same number of rxq and txq in dcb mode
*/
if (dcb_mode == DCB_VT_ENABLED) {
- nb_rxq = rte_port->dev_info.max_rx_queues;
- nb_txq = rte_port->dev_info.max_tx_queues;
+ if (rte_port->dev_info.max_vfs > 0) {
+ nb_rxq = 1;
+ nb_txq = 1;
+ } else {
+ nb_rxq = rte_port->dev_info.max_rx_queues;
+ nb_txq = rte_port->dev_info.max_tx_queues;
+ }
} else {
/*if vt is disabled, use all pf queues */
if (rte_port->dev_info.vmdq_pool_base == 0) {
--
2.4.3
