d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/ixgbe: fix max queue number for VF

Browse Source 
VF can't run in multiple queue mode, if nb_q_per_pool is set to 1.
Nb_q_per_pool is passed through to max_rx_q and max_tx_q in VF.
So if nb_q_per_pool is equal to 1, max_rx_q and max_tx_q shouldn't
be more than 1, otherwise VF multiple queue mode will fail.

RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool is the Max number of queue can be
used in VF, that would be assigned as IXGBE_MAX_RX_QUEUE_NUM /
RTE_ETH_DEV_SRIOV(dev).active, so that assigning nb_q_per_pool  as 1
when PF is in ETH_MQ_RX_NONE, which will make VF can just use only 1
queue, is not right.

Fixes: 27b609cbd1 ("ethdev: move the multi-queue mode check to specific drivers")
Cc: stable@dpdk.org

Signed-off-by: Yanglong Wu <yanglong.wu@intel.com>
Acked-by: Wei Dai <wei.dai@intel.com>
This commit is contained in:
Yanglong Wu 2018-01-09 14:32:05 +08:00 committed by Ferruh Yigit
parent ecad87d223
commit 03231aec44
1 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ixgbe/ixgbe_ethdev.c
View File

@ -2214,8 +2214,6 @@ ixgbe_check_mq_mode(struct rte_eth_dev *dev)
case ETH_MQ_RX_NONE:
/* if nothing mq mode configure, use default scheme */
dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
break;
default: /* ETH_MQ_RX_DCB, ETH_MQ_RX_DCB_RSS or ETH_MQ_TX_DCB*/
/* SRIOV only works in VMDq enable mode */