[dpdk-dev] [PATCH v2] net/virtio: improve logs in Vhost-vDPA DMA mapping
From: Maxime Coquelin <hidden>
Date: 2021-01-05 15:34:59
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch adds debug logs in vhost_vdpa_dma_map() and vhost_vdpa_dma_unmap() to ease debugging. Signed-off-by: Maxime Coquelin <redacted> --- Changes in v2: - fix i686 build (Chenbo) drivers/net/virtio/virtio_user/vhost_vdpa.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c b/drivers/net/virtio/virtio_user/vhost_vdpa.c
index c7b9349fc8..c5b59e2f95 100644
--- a/drivers/net/virtio/virtio_user/vhost_vdpa.c
+++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c@@ -93,6 +93,9 @@ vhost_vdpa_dma_map(struct virtio_user_dev *dev, void *addr, msg.iotlb.size = len; msg.iotlb.perm = VHOST_ACCESS_RW; + PMD_DRV_LOG(DEBUG, "%s: iova: 0x%" PRIx64 ", addr: %p, len: 0x%zx", + __func__, iova, addr, len); + if (write(dev->vhostfd, &msg, sizeof(msg)) != sizeof(msg)) { PMD_DRV_LOG(ERR, "Failed to send IOTLB update (%s)", strerror(errno));
@@ -113,6 +116,9 @@ vhost_vdpa_dma_unmap(struct virtio_user_dev *dev, __rte_unused void *addr, msg.iotlb.iova = iova; msg.iotlb.size = len; + PMD_DRV_LOG(DEBUG, "%s: iova: 0x%" PRIx64 ", len: 0x%zx", + __func__, iova, len); + if (write(dev->vhostfd, &msg, sizeof(msg)) != sizeof(msg)) { PMD_DRV_LOG(ERR, "Failed to send IOTLB invalidate (%s)", strerror(errno));
--
2.29.2