diff mbox

[dpdk-dev,2/5] virtio: don't enable/disable rx modes unless supported

Message ID 1429111219-8789-3-git-send-email-stephen@networkplumber.org (mailing list archive)
State Superseded, archived
Headers

Commit Message

Stephen Hemminger April 15, 2015, 3:20 p.m. UTC 
  Don't try to set features related to receiving unless the
appropriate feature bit has ben negotiated with the host.

This solves some of the issues when using virtio on non-KVM/QEMU
hypervisors.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/librte_pmd_virtio/virtio_ethdev.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Comments

Ouyang Changchun April 16, 2015, 3:41 a.m. UTC | #1 
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Stephen
> Hemminger
> Sent: Wednesday, April 15, 2015 11:20 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH 2/5] virtio: don't enable/disable rx modes unless
> supported
> 
> Don't try to set features related to receiving unless the appropriate feature
> bit has ben negotiated with the host.
> 
> This solves some of the issues when using virtio on non-KVM/QEMU
> hypervisors.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Acked-by: Changchun Ouyang <changchun.ouyang@intel.com>
diff mbox

Patch

diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c b/lib/librte_pmd_virtio/virtio_ethdev.c
index a38ceed..f0859d8 100644
--- a/lib/librte_pmd_virtio/virtio_ethdev.c
+++ b/lib/librte_pmd_virtio/virtio_ethdev.c
@@ -426,6 +426,11 @@  virtio_dev_promiscuous_enable(struct rte_eth_dev *dev)
 	int dlen[1];
 	int ret;
 
+	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
+		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		return;
+	}
+
 	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
 	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
 	ctrl.data[0] = 1;
@@ -444,6 +449,11 @@  virtio_dev_promiscuous_disable(struct rte_eth_dev *dev)
 	int dlen[1];
 	int ret;
 
+	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
+		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		return;
+	}
+
 	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
 	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
 	ctrl.data[0] = 0;
@@ -462,6 +472,11 @@  virtio_dev_allmulticast_enable(struct rte_eth_dev *dev)
 	int dlen[1];
 	int ret;
 
+	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
+		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		return;
+	}
+
 	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
 	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
 	ctrl.data[0] = 1;
@@ -480,6 +495,11 @@  virtio_dev_allmulticast_disable(struct rte_eth_dev *dev)
 	int dlen[1];
 	int ret;
 
+	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
+		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		return;
+	}
+
 	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
 	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
 	ctrl.data[0] = 0;