net/nfp: support IOVA VA mode

[dpdk.git] / drivers / net / nfp / nfp_net.c

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 4d6a797..bab1f68 100644 (file)
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -2702,6 +2702,14 @@ nfp_net_init(struct rte_eth_dev *eth_dev)
 
        pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 
+       /* NFP can not handle DMA addresses requiring more than 40 bits */
+       if (rte_eal_check_dma_mask(40)) {
+               RTE_LOG(ERR, PMD, "device %s can not be used:",
+                                  pci_dev->device.name);
+               RTE_LOG(ERR, PMD, "\trestricted dma mask to 40 bits!\n");
+               return -ENODEV;
+       };
+
        if ((pci_dev->id.device_id == PCI_DEVICE_ID_NFP4000_PF_NIC) ||
            (pci_dev->id.device_id == PCI_DEVICE_ID_NFP6000_PF_NIC)) {
                port = get_pf_port_number(eth_dev->data->name);
@@ -3282,14 +3290,16 @@ static int eth_nfp_pci_remove(struct rte_pci_device *pci_dev)
 
 static struct rte_pci_driver rte_nfp_net_pf_pmd = {
        .id_table = pci_id_nfp_pf_net_map,
-       .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
+       .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
+                    RTE_PCI_DRV_IOVA_AS_VA,
        .probe = nfp_pf_pci_probe,
        .remove = eth_nfp_pci_remove,
 };
 
 static struct rte_pci_driver rte_nfp_net_vf_pmd = {
        .id_table = pci_id_nfp_vf_net_map,
-       .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
+       .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
+                    RTE_PCI_DRV_IOVA_AS_VA,
        .probe = eth_nfp_pci_probe,
        .remove = eth_nfp_pci_remove,
 };