From: "maryam.tahhan" <maryam.tah...@intel.com>
This patch enables arbitrary port naming for vhost patches, so
they no longer need to be called dpdkvhost<n>.
Signed-off-by: maryam.tahhan <maryam.tah...@intel.com>
---
INSTALL.DPDK | 6 +++---
lib/netdev-dpdk.c | 30 ++++++++++++++++--------------
2 files changed, 19 insertions(+), 17 deletions(-)
diff --git a/INSTALL.DPDK b/INSTALL.DPDK
index ad60d25..e428937 100644
--- a/INSTALL.DPDK
+++ b/INSTALL.DPDK
@@ -210,15 +210,15 @@ Pre-requisits: Fuse (packages: fuse and fuse-devel) & Cuse
both. Please refer to the Guest setup section for more information on how
to
setup the guest in both cases.
- - Now you can add dpdkvhost devices. OVS expects DPDK vhost device name to
start
- with dpdkvhost and end with a portid:
+ - Now you can add dpdkvhost devices.
e.g.
ovs-vsctl add-port br0 dpdkvhost0 -- set Interface dpdkvhost0 type=dpdkvhost
- Finally setup a guest with a virtio-net device attached to the vhost port.
- **Note: tested with Qemu versions 1.4.2 and 1.6.2**
+ **Note 1: tested with Qemu versions 1.4.2 and 1.6.2**
+ Note 2: ports don't have to be called dpdkvhost<n>.
Guest Setup Requirements:
-------------------------
diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index d01d123..b8e6777 100644
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -170,6 +170,7 @@ struct dpdk_mp {
struct netdev_dpdk {
struct netdev up;
int type; /*DPDK or VHOST*/
+ char *name;
int port_id;
int max_packet_len;
@@ -454,9 +455,9 @@ static int
netdev_dpdk_vhost_construct(struct netdev *netdev_)
{
struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_);
- unsigned int port_no;
+ struct netdev_dpdk *tmp_netdev;
+ unsigned int port_no = 0;
struct ether_addr eth_addr;
- char *cport;
int err = 0;
int i;
struct rte_pktmbuf_pool_private *mbp_priv;
@@ -465,14 +466,6 @@ netdev_dpdk_vhost_construct(struct netdev *netdev_)
return rte_eal_init_ret;
}
ovs_mutex_lock(&dpdk_mutex);
- cport = netdev_->name + 9; /* Names always start with "dpdkvhost". */
-
- if (strncmp(netdev_->name, "dpdkvhost", 9)) {
- err = ENODEV;
- goto unlock_dpdk_vhost;
- }
-
- port_no = strtol(cport, 0, 0); /* string must be null terminated. */
for (i = 0; i < NR_QUEUE; i++) {
rte_spinlock_init(&netdev->tx_q[i].queue_lock);
@@ -485,10 +478,18 @@ netdev_dpdk_vhost_construct(struct netdev *netdev_)
netdev->flags = NETDEV_UP | NETDEV_PROMISC;
netdev->dev = NULL;
netdev->type = VHOST;
+ netdev->name = netdev_->name;
netdev->mtu = ETHER_MTU;
netdev->max_packet_len = MTU_TO_MAX_LEN(netdev->mtu);
+ if(!list_is_empty(&dpdk_list)){
+ LIST_FOR_EACH (tmp_netdev, list_node, &dpdk_list) {
+ if(tmp_netdev->type== VHOST)
+ port_no++;
+ }
+ }
+
/* TODO: need to discover device node at run time. */
netdev->socket_id = SOCKET0;
netdev->port_id = port_no;
@@ -505,7 +506,7 @@ netdev_dpdk_vhost_construct(struct netdev *netdev_)
}
memset(ð_addr, 0x0, sizeof(eth_addr));
- if(netdev->port_id)
+
if(netdev->port_id < 0xff)
eth_addr.addr_bytes[5] = netdev->port_id;
else
@@ -519,12 +520,13 @@ netdev_dpdk_vhost_construct(struct netdev *netdev_)
netdev->buf_size =
mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM;
+ VLOG_INFO("%s is associated with VHOST port #%d\n", netdev->name,
+ netdev->port_id);
list_push_back(&dpdk_list, &netdev->list_node);
unlock_dev:
ovs_mutex_unlock(&netdev->mutex);
-unlock_dpdk_vhost:
ovs_mutex_unlock(&dpdk_mutex);
return err;
@@ -1748,8 +1750,8 @@ new_device (struct virtio_net *dev)
return -1;
}
- VLOG_INFO("(%ld) VHOST Device has been added to dpdkvhost%d \n",
- dev->device_fh, netdev->port_id);
+ VLOG_INFO("(%ld) VHOST Device has been added to vhost port %s \n",
+ dev->device_fh, netdev->name);
return 0;
}
--
1.9.0
--------------------------------------------------------------
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