The interrupt vector which bind to queues should not larger than the max avaiable vertor. It will cause port start failed. This patch changed the judgement condition of the limited vector id. It can effectively avoid vector id out of range.
Fixes: 5b8d2d89dd99 (net/i40e: enable multi-queue Rx interrupt for VF) Signed-off-by: Lunyuan Cui <lunyuanx....@intel.com> --- v4: - Change commit message v3: - Change commit message v2: - Change commit message --- drivers/net/i40e/i40e_ethdev_vf.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index 479f8282c..d514e8991 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -657,7 +657,6 @@ i40evf_config_irq_map(struct rte_eth_dev *dev) struct rte_intr_handle *intr_handle = &pci_dev->intr_handle; uint32_t vector_id; int i, err; - uint16_t nb_msix; if (dev->data->dev_conf.intr_conf.rxq != 0 && rte_intr_allow_others(intr_handle)) @@ -665,9 +664,6 @@ i40evf_config_irq_map(struct rte_eth_dev *dev) else vector_id = I40E_MISC_VEC_ID; - nb_msix = RTE_MIN(vf->vf_res->max_vectors, - intr_handle->nb_efd); - map_info = (struct virtchnl_irq_map_info *)cmd_buffer; map_info->num_vectors = dev->data->nb_rx_queues; for (i = 0; i < dev->data->nb_rx_queues; i++) { @@ -682,7 +678,7 @@ i40evf_config_irq_map(struct rte_eth_dev *dev) intr_handle->intr_vec[i] = vector_id; if (vector_id > I40E_MISC_VEC_ID) vector_id++; - if (vector_id > nb_msix) + if (vector_id >= vf->vf_res->max_vectors) vector_id = I40E_RX_VEC_START; } -- 2.17.1