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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2009-09-03 04:11:45 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-09-04 07:02:13 +0400 |
| commit | 2c11455321f37da6fe6cc36353149f9ac9183334 (patch) | |
| tree | 8033ca6f3cc54780074c7d2a734ee3c62fec3ca3 /drivers | |
| parent | 0fa0ee053aaa53939306376719450cfe56e33e3b (diff) | |
| download | linux-2c11455321f37da6fe6cc36353149f9ac9183334.tar.xz | |
macvlan: add multiqueue capability
macvlan devices are currently not multi-queue capable.
We can do that defining rtnl_link_ops method,
get_tx_queues(), called from rtnl_create_link()
This new method gets num_tx_queues/real_num_tx_queues
from lower device.
macvlan_get_tx_queues() is a copy of vlan_get_tx_queues().
Because macvlan_start_xmit() has to update netdev_queue
stats only (and not dev->stats), I chose to change
tx_errors/tx_aborted_errors accounting to tx_dropped,
since netdev_queue structure doesnt define tx_errors /
tx_aborted_errors.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/macvlan.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index c85c46d2a309..3aabfd9dd212 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -187,6 +187,8 @@ static struct sk_buff *macvlan_handle_frame(struct sk_buff *skb) static netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, struct net_device *dev) { + int i = skb_get_queue_mapping(skb); + struct netdev_queue *txq = netdev_get_tx_queue(dev, i); const struct macvlan_dev *vlan = netdev_priv(dev); unsigned int len = skb->len; int ret; @@ -195,12 +197,11 @@ static netdev_tx_t macvlan_start_xmit(struct sk_buff *skb, ret = dev_queue_xmit(skb); if (likely(ret == NET_XMIT_SUCCESS)) { - dev->stats.tx_packets++; - dev->stats.tx_bytes += len; - } else { - dev->stats.tx_errors++; - dev->stats.tx_aborted_errors++; - } + txq->tx_packets++; + txq->tx_bytes += len; + } else + txq->tx_dropped++; + return NETDEV_TX_OK; } @@ -484,6 +485,25 @@ static int macvlan_validate(struct nlattr *tb[], struct nlattr *data[]) return 0; } +static int macvlan_get_tx_queues(struct net *net, + struct nlattr *tb[], + unsigned int *num_tx_queues, + unsigned int *real_num_tx_queues) +{ + struct net_device *real_dev; + + if (!tb[IFLA_LINK]) + return -EINVAL; + + real_dev = __dev_get_by_index(net, nla_get_u32(tb[IFLA_LINK])); + if (!real_dev) + return -ENODEV; + + *num_tx_queues = real_dev->num_tx_queues; + *real_num_tx_queues = real_dev->real_num_tx_queues; + return 0; +} + static int macvlan_newlink(struct net_device *dev, struct nlattr *tb[], struct nlattr *data[]) { @@ -550,6 +570,7 @@ static void macvlan_dellink(struct net_device *dev) static struct rtnl_link_ops macvlan_link_ops __read_mostly = { .kind = "macvlan", .priv_size = sizeof(struct macvlan_dev), + .get_tx_queues = macvlan_get_tx_queues, .setup = macvlan_setup, .validate = macvlan_validate, .newlink = macvlan_newlink, |