net/bnxt: fix Rx buffer posting

[dpdk.git] / drivers / bus / vdev / vdev.c

diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index acfd788..9a67334 100644 (file)
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -189,6 +189,7 @@ vdev_probe_all_drivers(struct rte_vdev_device *dev)
 {
        const char *name;
        struct rte_vdev_driver *driver;
+       enum rte_iova_mode iova_mode;
        int ret;
 
        if (rte_dev_is_probed(&dev->device))
@@ -199,6 +200,14 @@ vdev_probe_all_drivers(struct rte_vdev_device *dev)
 
        if (vdev_parse(name, &driver))
                return -1;
+
+       iova_mode = rte_eal_iova_mode();
+       if ((driver->drv_flags & RTE_VDEV_DRV_NEED_IOVA_AS_VA) && (iova_mode == RTE_IOVA_PA)) {
+               VDEV_LOG(ERR, "%s requires VA IOVA mode but current mode is PA, not initializing",
+                               name);
+               return -1;
+       }
+
        ret = driver->probe(dev);
        if (ret == 0)
                dev->device.driver = &driver->driver;
@@ -594,6 +603,25 @@ vdev_unplug(struct rte_device *dev)
        return rte_vdev_uninit(dev->name);
 }
 
+static enum rte_iova_mode
+vdev_get_iommu_class(void)
+{
+       const char *name;
+       struct rte_vdev_device *dev;
+       struct rte_vdev_driver *driver;
+
+       TAILQ_FOREACH(dev, &vdev_device_list, next) {
+               name = rte_vdev_device_name(dev);
+               if (vdev_parse(name, &driver))
+                       continue;
+
+               if (driver->drv_flags & RTE_VDEV_DRV_NEED_IOVA_AS_VA)
+                       return RTE_IOVA_VA;
+       }
+
+       return RTE_IOVA_DC;
+}
+
 static struct rte_bus rte_vdev_bus = {
        .scan = vdev_scan,
        .probe = vdev_probe,
@@ -603,6 +631,7 @@ static struct rte_bus rte_vdev_bus = {
        .parse = vdev_parse,
        .dma_map = vdev_dma_map,
        .dma_unmap = vdev_dma_unmap,
+       .get_iommu_class = vdev_get_iommu_class,
        .dev_iterate = rte_vdev_dev_iterate,
 };