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dpif-netdev: Allow different numbers of rx queues for different ports.

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Currently, all of the PMD netdevs can only have the same number of
rx queues, which is specified in other_config:n-dpdk-rxqs.

Fix that by introducing of new option for PMD interfaces: 'n_rxq', which
specifies the maximum number of rx queues to be created for this
interface.

Example:
	ovs-vsctl set Interface dpdk0 options:n_rxq=8

Old 'other_config:n-dpdk-rxqs' deleted.

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Ben Pfaff <blp@ovn.org>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
This commit is contained in:
Ilya Maximets
2016-01-21 17:15:18 +03:00
committed by Daniele Di Proietto
parent 9d2d2b5cd2
commit a14b8947fd
16 changed files with 102 additions and 65 deletions
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26
lib/netdev-dpdk.c
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@@ -614,6 +614,7 @@ netdev_dpdk_init(struct netdev *netdev_, unsigned int port_no,
netdev_->n_txq = NR_QUEUE;
netdev_->n_rxq = NR_QUEUE;
netdev_->requested_n_rxq = NR_QUEUE;
netdev->real_n_txq = NR_QUEUE;
if (type == DPDK_DEV_ETH) {
@@ -769,20 +770,35 @@ netdev_dpdk_dealloc(struct netdev *netdev_)
}
static int
netdev_dpdk_get_config(const struct netdev *netdev_, struct smap *args)
netdev_dpdk_get_config(const struct netdev *netdev, struct smap *args)
{
struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_);
struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
ovs_mutex_lock(&dev->mutex);
smap_add_format(args, "configured_rx_queues", "%d", netdev_->n_rxq);
smap_add_format(args, "requested_tx_queues", "%d", netdev_->n_txq);
smap_add_format(args, "requested_rx_queues", "%d", netdev->requested_n_rxq);
smap_add_format(args, "configured_rx_queues", "%d", netdev->n_rxq);
smap_add_format(args, "requested_tx_queues", "%d", netdev->n_txq);
smap_add_format(args, "configured_tx_queues", "%d", dev->real_n_txq);
ovs_mutex_unlock(&dev->mutex);
return 0;
}
static int
netdev_dpdk_set_config(struct netdev *netdev, const struct smap *args)
{
struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
ovs_mutex_lock(&dev->mutex);
netdev->requested_n_rxq = MAX(smap_get_int(args, "n_rxq",
netdev->requested_n_rxq), 1);
netdev_change_seq_changed(netdev);
ovs_mutex_unlock(&dev->mutex);
return 0;
}
static int
netdev_dpdk_get_numa_id(const struct netdev *netdev_)
{
@@ -2127,7 +2143,7 @@ unlock_dpdk:
DESTRUCT, \
netdev_dpdk_dealloc, \
netdev_dpdk_get_config, \
NULL, /* netdev_dpdk_set_config */ \
netdev_dpdk_set_config, \
NULL, /* get_tunnel_config */ \
NULL, /* build header */ \
NULL, /* push header */ \