From: YU DAPENG <dapengx...@intel.com> When the interrupt handle instance allows none packet I/O interrupts, the max value of vector_id is set to be less than the number of msix interrupts, but not equal to it. Which may cause same vector_id is sent to PF with opcode VIRTCHNL_OP_CONFIG_IRQ_MAP to setup the cause of interrupt mapping in iavf_config_irq_map(), these are invalid parameters, cause error: VIRTCHNL_STATUS_ERR_PARAM(-5). So add code to set the max value of vector_id to be equal to the number of msix interrupts.
Fixes: d6bde6b5eae9 ("net/avf: enable Rx interrupt") Cc: sta...@dpdk.org Signed-off-by: YU DAPENG <dapengx...@intel.com> --- drivers/net/iavf/iavf_ethdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c index 7e3c26a94..54ea3a36c 100644 --- a/drivers/net/iavf/iavf_ethdev.c +++ b/drivers/net/iavf/iavf_ethdev.c @@ -578,7 +578,7 @@ static int iavf_config_rx_queues_irqs(struct rte_eth_dev *dev, qv_map[i].queue_id = i; qv_map[i].vector_id = vec; intr_handle->intr_vec[i] = vec++; - if (vec >= vf->nb_msix) + if (vec > vf->nb_msix) vec = IAVF_RX_VEC_START; } vf->qv_map = qv_map; -- 2.27.0